gas chromatography

The time required for capillary gas chromatography (GC) runs is often the major factor in sample turnaround time.

The software is able to be used for experiment teaching and selection of operational conditions for gas chromatography.

The surface physicochemical properties of hydroxyl terminated polybutadiene(HTPB)were studied by means of inverse gas chromatography(IGC).

Gas chromatography method is widely used to determine the residues of the pesticides organochlorine and organophosphorus.

The improvements of gas chromatography method used to determine epoxy chloropropane in the air and waste air are discussed and tested.

The system mainly consists of parts of gas line, electronic controller, parts of gas chromatography, detector and recorder.

Gas chromatography was used for the phenotype identification of oleic and linolenic acid content.

Gas chromatography has the properties of good repeatability and high reliability, and is an ideal way to determine octadecane amine.

A new method to analyse the total fatty acid composition of erythrocyte membrane with capillary gas chromatography is introduced.

At the time, the chemical company BASF was using gas chromatography to characterize the metabolic effects of potential herbicides .

Finally, the sensitivity and effect condition of gas-chromatography thermal conductivity detection system can be greatly increased.

The combination of gas chromatography and mass spectrometry thus works. It can, nevertheless, take up to two days to run the tests.

The content of relative percentage of each ingredient was determined by the gas chromatography area normalizing.

The back-flush technique was used in the determination of organophosphorus pesticide residues in vegetables by gas chromatography.

Furthermore, the reaction mixture was analyzed by gas chromatography to determine the amount of the products.

Gas chromatography employ inert gas, commonly Nitrogen, to carry the volatile substances through the column.

Read the general references on Gas Chromatography in the Techniques Manual (TM) or Technique in Organic Chemistry (MHSM) .

To introduce a method for the determination of the alcoholysis degree of PVA at extra-low alcoholysis by headspace gas chromatography.

The chemical compositions of the product were examined by the gas chromatography-mass spectrometric and infrared spectrum.

An expert system for column system recommendation of gas chromatography used in pharmaceutical analysis is reported.

Solid phase microextraction coupled with gas chromatography-mass spectrometry was used to analyzed the volatile flavor component.

stationary source emission . determination of chlorobenzenes . gas chromatography.

In the case of gas chromatography typical variations are different lots or suppliers of columns the temperature and the flow rate.

GAS ANALYSIS. DETERMINATION OF CARBON MONOXIDE BY MEANS OF GAS CHROMATOGRAPHY.

Moreover, this strain was confirmed to be lactic acid type yeast by paper chromatography and gas chromatography.

In this paper, the gas chromatography method is presented for the evaluation of uncertainty to determine HCH and DDT residues in rice.

The invention relates to the capillary gas chromatography technique, specific to cutting-blow back method and its device.

It is still at study that pyrolysis gas chromatography technology is applied in the evaluation of reservoir fluid property.

To develop solution headspace gas chromatography for the determination of residual ethanol solvent in Piperaquine Phosphate.

stationary source emission . determination of exhauster anilines . gas chromatography.

Objective: To establish a gas chromatography method for the determination of the content of the in Songzi Oil leaves extract.

With different solvents as probes, so the thermodynamic performances of plasticizer were investigated by inverse gas chromatography (IGC).

The experimental operation requirements and notes of analyzing naphthalene by big calibre capillary gas chromatography are described.

Can be established in accordance with user needs analysis, design and production for gas chromatography.

A method was developed for the determination of methamphetamine (M AM) in human blood using microwave extraction-gas chromatography (GC).

Also we used gas chromatography to measure residual ethanol, results were in line with quality requirements.

Light olefins for industrial use . Determination of impurities by gas chromatography . General considerations.

With NPD in gas chromatography and wide capillary column, phosphorus in surface water, waster water and mud was determined.

Gas chromatography is an important tool for rapid chemical separations in nuclear and Radiochemistry.

Gas chromatography FID detector structure and features, the common troubles and troubleshooting methods were introduced.

Performance for dioxin determination by gas chromatography-mass spectrometry coupled with large volume injection was studied.

seed was detected by Soxhlet extraction method, and fatty acid composition of the oil was analyzed by gas chromatography -FID method.

Objective: To develop headspace gas chromatography for the determination of residual solvent in chitosan ester.

Results The application gas chromatography can discriminate such sovereign medicine succeeds copy, TCL stain is distinctly.

Gas chromatography method is simple, rapid and accurate. It can be applied to determine sodium cyclamate in milk beverages.

The analysis of each product was performed by gas chromatography-mass spectrometry(GC-MS) system.

The main components of wash oil have been determined by capillary gas chromatography.

asked on the retention equation in gas chromatography, the repelling interaction between solute(n-heptane)and stationary phase was studied.

The components were separated and identified by gas chromatography mass spectrometry and elucidated on the standard mass spectral data.

Its application is explained with the example of the rectification rotor flowmeter in gas chromatography.

By NPD, Capillary gas chromatography of organophosphorus pesticides in vegetables and fruits rapid detection of residues.

Discussion of what information gas chromatography provides.

A method for the determination of residual organic solvents in trichlorosucrose by headspace gas chromatography has been developed.

By gas chromatography. the methyl salicylate volatile on the main components in the content determination.

The product was purified and characterized by gas chromatography, mass spectrograph and infrared spectroscopy.

Methods After culture solution acidification, acetic acid was extracted by acetone and ether, and detected by gas chromatography.

The adulteration of sesame oil was analyzed by gas chromatography for the composition of fatty acids and hallmark test of sesame oil.

Plastics - Phenolic resins - Determination of residual phenol content by gas chromatography.

The uncertainty evaluation during determining HCH and DDT residues in edible vegetable oils by gas chromatography is introduced.

The whole procedure by gas chromatography analysis is stated and makes fault judgement to the transformer interior by analyzing data.

Enrich trichloroethylene in water with the method of hexane extraction, and determine it by capillary column gas chromatography.

To do this, the oils were broken into their component parts and analysed using gas chromatography and mass spectrometry.

Diphenyl and phenanthrene were separated and detected effectively with low loaded column gas chromatography.

A chemical conversion-gas chromatography was studied for the determination of free silicon in silicon nitride.

Gas chromatography was used to analyze the residue of butene-fipronil in rice.

A quick-freezing machine of major equipment, compressors, boilers, metal detectors, gas chromatography, blanching lines, and other segments.

We use gas chromatography for moisture determination in a number of grains .

Conclusion Gas chromatography-mass spectrometry combined with chemometric resolution method can greatly enhance the accuracy of. . .

Results from the gas chromatography analysis show that the decomposition rate of the propiconazole EC was 2. 3% after the thermal storage.

PLASTICS. DETERMINATION OF RESIDUAL STYRENE MONOMER IN POLYSTYRENE BY GAS CHROMATOGRAPHY.

The content of free toluene diisocyanate(TDI) in solidified agent for polyurethane is determined by gas chromatography.

Spectrophotometric method and gas chromatography were the authorized national standard analytical methods to fusel oil.

The article introduces a method to identify the true or false oil and gas shows with the pyrolysis gas chromatography technique.

In gas chromatography analytical, for once given analytical task, the choice suitable fixed liquid is the key of finishing task.

Methods: Using heavy caliber capillary gas chromatography with headspace sampling.

A credible gas chromatography method was established to determine the residual trichloroacetic acid in water.

Gas chromatography technology has been widely used in the analysis of petroleum industry.

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 1 : guidelines for tailored analysis.

A method was developed for the determining of endosulfan residues in exporting eel by gas chromatography.

Volatile materials are generally measured through gas chromatography.

Artemisinin is studied on thermal stable actions, thermal decomposition and the method of gas chromatography by gas chromatograph.

This article describes the method to measure the ABS products composition with cracking gas chromatography.

Chemical industries. Standard layout for methods of chemical analysis by gas chromatography.

Methods The aggregation pheromone was extracted from epidermis and analysed by gas chromatography(GC).

Dissipation and residues of cyhalothrin in soil, cotton leaves and seeds were determined by Gas Chromatography.

Methods The fingerprints were developed with capillary gas chromatography.

GAS ANALYSIS BY MEANS OF GAS CHROMATOGRAPHY.

OBJECTIVE: To determine the content of Patchouli alcohol in Xiaoer tunneling powder by gas chromatography(GC).

In this paper, we had set up the analysis method of determination of camphor in ointment by gas chromatography.

Testing gas compositions by using single gas chromatography is hard to realize one-time multiple groups full analysis.

In this paper, we had set up the analysis method of determination of camphor in ointment by gas chromatography.

Testing gas compositions by using single gas chromatography is hard to realize one-time multiple groups full analysis.

ESSENTIAL OILS. ANALYSIS BY GAS CHROMATOGRAPHY ON CAPILLARY CHIRAL COLUMN. GENERAL METHOD.

The article uses headspace gas chromatography to measure halogenated hydrocarbon in the sample water.

Gas chromatography showed their percentages by area normalization method.

The anode exhaust gas is analyzed by the gas chromatography at the condition of open circuit.

A method for the determination of naphthalene in coal tar by capillary pillar gas chromatography has been researched.

The method is cheaper, more rapid than gas chromatography, and suited to rapid testing industrial chlordane.

Only recently has it been possible to separate and identify these ingredients by the use of gas chromatography and spectroscopy.

An on-line analytical method of gas chromatography for determination of total carbon in pure hydrogen produced by PSA was studied.

An on-line analytical method of gas chromatography for determination of total carbon in pure hydrogen produced by PSA was studied.

New techniques are used in the derivatization of non-volatile species for gas chromatography.

The residual dynamics of Malathion in rice plant, soil, water samples were determined by NP Gas Chromatography.

Essential oils. Analysis by gas chromatography on capillary column. General method.

CHEMICAL INDUSTRIES. GAS CHROMATOGRAPHY. TERMS AND SYMBOLS.

Water quality - Determination of hydrocarbon oil index - Part 2 : method using solvent extraction and gas chromatography.

A method for the determination of sorbic acid in lactic acid beverage by gas chromatography-mass spectrometry was introduced.

Quantitation is based on gas chromatography-mass spectrometry, using peak area of selective ion monitoring of the methyl derivative of MX.

The nature of the compositions were determined by gas chromatography mass spectroscopy.

This article introduces the determination of NHD in condensate by gas chromatography.

The determination of malathion residues in grain by gas chromatography is introduced.

Essential oils. Analysis by gas chromatography on packed column. General method.

ESSENTIALS OILS. OIL OF ROSE. DOSAGE OF CITRONELLOL, NEROL AND GERANIOL BY GAS CHROMATOGRAPHY.

In addition, studies on the approach to analyzing the content of propiconazole by means of gas chromatography was carried out.

abstract: Objective: To develop a method for determining the benzenes in drinking water by capillary column gas chromatography.

Methods: Used carbon disulfide to extract the benzenes in drinking water, Gas chromatography separation and detection.

Gas - solid chromatography See gas chromatography .

Studies on the Gas Chromatography Fingerprint of the Volatile Oil in Zanthoxylum bungeanum Maxim .

A self-displacement gas chromatography (SDGC) system using two columns packed with Pd was fabricated for deuterium enrichment.

Capillary gas chromatography was applied to the determination of 4 kinds ofp-hydroxybenzoate antiseptics in foods.

Capillary gas chromatography was applied to the determination of 4 kinds ofp-hydroxybenzoate antiseptics in foods.

A method to determine ginkgolic acids in Ginkgo biloba leaves was developed on the basis of pyrolytic methylation-gas chromatography.

A method using gas chromatography to analyze the component of oil in caster seeds quickly is presented.

Animal and vegetable fats and oils. Analysis by gas chromatography of methyl esters of fatty acids.

The products'purity were determined by the gas chromatography.

LIQUID PETROLEUM PRODUCTS. DETERMINATION OF BENZENE, TOLUENE AND METHYLTERT-BUTYLETHER IN PETROL. METHOD BY CAPILLARY GAS CHROMATOGRAPHY.

Methods: The samples were analysed by pyrolysis gas chromatography.

A method is described for the determination of endosulfan pesticide residues in Litopenaeus vannamai by capillary gas chromatography.

A method has been developed for the determination of fluroxypyr residue in grains, vegetables and fruits by gas chromatography.

Methods: n-hexane and trichloroethylene were detected in 34 organic solvents with Gas Chromatography.

Methods: n-hexane and trichloroethylene were detected in 34 organic solvents with Gas Chromatography.

The recent development of metal complexes as gas chromatography (GC) stationary phases is reviewed.

Accurately defining peak position is very critical for quantitation in gas chromatography.

A method of determination of mannite in tai bai ginseng by gas chromatography is introduced.

There are many factors that influence the accuracy of quantitative gas chromatography.

The purity of COS pure gas was analyzed by gas chromatography and mass spectrometry.

Objective: Synthesis of (R )-glycidyl butyrate was monitored by gas chromatography.

The degradation dynamics of iprodione on greengrocery in greenhouse and at open field were studied with gas chromatography(GC).

Objective To investigate the content of trans fatty acid in food by using gas chromatography.

A method to analyze cholesterol and 8 cholesterol oxides was studied by capillary gas chromatography.

A method to analyze cholesterol and 8 cholesterol oxides was studied by capillary gas chromatography.

The five pyrethroids in Herba cistanches were determined by matrix solid-phase dispersion method (MSPD) and gas chromatography.

LIQUID FUELS. IDENTIFICXATION OF COLZA METHYL ESTER INMIDDLE DISTILLATE. METHOD BY LIQUID AND GAS CHROMATOGRAPHY.

It established the method of detecting VFA by gas chromatography.

Using solvent relief absorption gas Chromatography to estimate the concentration of the Benzene and benzene series in the room air.

In this article, the monitoring method of phthalic acid ester in air was established by gas chromatography.

This paper presents how to determinate the content of benzene in orange juice by headspace gas chromatography (GC).

The aromatic hydrocarbon in air was analyzed by using the solid-phase microextraction with absorptive stick and gas chromatography.

The content of main fatty acid of 23 cases 115 human plasma samples before & after operation were analysed by gas chromatography.

The speedy analysis of flue gas by multi - channel gas chromatography was set up.

The speedy analysis of flue gas by multi - channel gas chromatography was set up.

A method for determination of claroline(C19~C28)in food is performed by the use of gas chromatography in hyphenation with mass spectrometry.

An analytica1 method for determination of mancozeb residue in potatoes and soil by gas chromatography has been established.

Methods: According to Pharmacopoeia 2005 on gas chromatography of large fruit acuminatissima Eucalyptus essential oil content.

A rapid, accurate, cheap and easy method of gas chromatography on Acctochor and Prometryne in herbicide "KM-6" has been studied.

essential oils . oil of cardamom . dosage of alpha - terpenyl and 1 , 8 - cineole by gas chromatography.

In the past few years, almost every field of gas chromatography has been made great progress.

Methods The contents of trans fatty acid in several kinds of fat products were determinated and analysed by using gas chromatography.

A gas chromatography fingerprint technique can be used to study oil layers connectivity .

Thermogravimetric analysis and gas chromatography are applied to study the typical components of medical waste.

Investigation of the surface property of copolyester and miscibility of its blends by inverse gas chromatography

Comparison of Methods Characterizing the Surface Properties of Polymer by Inverse Gas Chromatography

Gas Chromatography Analysis Used for Faults Diagnosis of Traction Transformers

Determination the residual of Benzene and Methylbenzene in the Total Rhapontisterone by the gas chromatography with the headspace sampling

Chromatographic Characteristics of Valinomycin Used in Capillary Gas Chromatography as a New Stationary Phase

Determination of Pyrethroid Pesticide Residues by Gas Chromatography-Negative Chemical Ionization Mass Spectrometry and Its Application

Correlativity of Retention Indices of Gas Chromatography with a Novel Molecular Structure Information Connectivity Index

Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector

Using Gas Chromatography to Determine the Hydrocarbon Contents of the Aromatic Hydrocarbon Extraction Solvent Sulfolane

Analysis of the Black Deposit Inside the Steel Tube of the Heat Exchanger by Gas Chromatography-Mass Spectrometry

A Gas Chromatography Method Used for Determining Intermediate Products in Mefenacet Production

Objective: To determine the content of acetaldehyde in high fructose corn syrup by the capillary gas chromatography with headspace sampling;

Quantification of cantharidin in an oral herbal liquid against nasopharyngeal carcinoma by capillary gas chromatography

Determination of the Writing Age of Blue Ballpoint Ink by Gas Chromatography

A study of corroboration analysis for determination of mineral oil added in vegetable oil with gas chromatography-mass spectrometry

Packaging - Flexible packaging material - Determination of residual solvents by static headspace gas chromatography - Industrial methods

Test Method for Determination of Chlorinated Organic Acid Compounds in Water by Gas Chromatography with an Electron Capture Detector

Determination of Gas Chromatography Analytical Method Standards Applied to Artificial Coal Gas, Liquefied Petroleum Gas and Natural Gas

Identification of the Flavor Compounds Obtained from Two Different Types of Soybean Protein Isolates by Gas Chromatography-Mass Spectrometry

Study of signal measurement and power circuit for modern-gas chromatography thermal conductivity detector

Synthesis of a new type of CSP for capillary gas chromatography and study on its chromatographic properties

Determination of Rimantadine Hydrochloride in Compound Rimantadine Hydrochloride Capsules by Capillary Gas Chromatography

Packaging - Flexible packaging material - Determination of residual solvents by static headspace gas chromatography - Absolute methods

Determination of Bromodichloromethane and Dibromochloromethane in Tap Water Using Headspace Gas Chromatography with Standard Addition Method

The peak time of several internal standards in gas chromatography under different temperature condition

Packaging - Flexible packaging material - Determination of residual solvents by dynamic headspace gas chromatography; Absolute method

Study on the Rate of Alkyl Replacement Reaction in Mixture of Alkyl Aluminum by Gas Chromatography and Chemical Method

Determination of the residual organic volatile solvents in rifampin and lornoxicam by capillary gas chromatography with headspace sampling

Thermal Desorption Gas Chromatography for the Simultaneous Determination of N-Hexane and Benzene in the air of workplaces

Analysis of the Component and Fingerprint of Effective Part of Ligusticum Chuanxiong Hort. By Gas Chromatography-Mass Spectrometry

Chromatographic Characteristic of Cellulose Derivatives as a New Stationary Phase in Capillary Gas Chromatography

A Gas Chromatography Method with Trichloroethylene, Perchlorethylene, Dichloroethane Coexistence in the Workplace

Numerical Simulation of the Separation Process of Two-Component Preparative Gas Chromatography

Determination of Organophosphorous Pesticide Residues in Traditional Chinese Medicines by Capillary Gas Chromatography

Determination of the residual organic volatile solvents in ganciclovir by capillary gas chromatography with headspace sampling

Determination of the Best Synthesis Condition for Dimethyl Carbonate from Urea and Methanol by Gas Chromatography

Simultaneous Determination of Volatile Halohydrocarbon and Chlorobenzene by Capillary Gas Chromatography

Simultaneous Determination of Organophosphorus and Carbamate Insecticide in Samples by Gas Chromatography- Mass Spectrometry

Determination of the Residual Solvent Content in Benzylpenicillin Sodium for Injection by Headspace Gas-chromatography Method

Study on the method for determination of methacrylonitrile in the air in a workplace by gas chromatography

Determination of the components in transesterification synthesis of dimethyl carbonate by gas chromatography

Determination of Organophosphorous Pesticides in Chinese Cabbage by Microwave-assisted Extraction Gas Chromatography

Determination of Trichloromethane and Tetrachloromethane in Drinking Water by Headspace Capillary Gas Chromatography

Enantiomer Separation and Determination of Amphetamines with Chiral Derivatization by Gas Chromatography-Mass Spectrometry

Standard method for hygienic examination of dinitrobenzene and nitrochlorobenzene in drinking water sources - Gas chromatography

Urease Pretreatment-Gas Chromatography-Mass Spectrometry in the diagnosis of succinic semialdehyde dehydrogenase deficiency

Analysis of CO gas used for the synthesis of phenylacetic acid by gas chromatography

Separation Characteristics of Comprehensive Two-dimensional Gas Chromatography in Analyzing Petroleum Samples

Evaluation of Biodegradation of Petroleum Hydrocarbons Pollutants by Gas Chromatography and Spectrophotometry

Standard Test Method for Residual Acrylonitrile Monomer Styrene-Acrylonitrile Copolymers and Nitrile Rubber by Headspace Gas Chromatography

Quantitative Determination of Residual Organic Solvents in Hydrochloride Nifekalant by Wide-Bore Quartz Capillary Column Gas Chromatography

Standard Practice for Testing Thermal Conductivity Detectors Used in Gas Chromatography

Determination of Isotope Composition of Dissolved Inorganic Carbon by Gas-Chromatography-Conventional Isotope-ratio Mass Spectrometry

Simultaneous Determination of Tetramine and Fluoroacetamide by Gas Chromatography-Mass Spectrometry with Large Volume Injection

Determination of the organochlorine insecticide residues in Lonicera japonica Thunb. By gas chromatography

Research on the Method for Determination of Diethyl Ketone in the air in a Workplace by Gas Chromatography

The Determination of Porphyrin Carbon Isotope Composition by Gas Chromatography-Isotope Ratio Monitoring Mass Spectrometry Technique

Application of Gas Chromatography by Capillary Tube to Determine Volatilizable N-nitrosamine Compound in Cooled Pork

Pyrolysis Gas Chromatography-Mass Spectrometry Applied to Identification of Oils in Ancient Paintings

Application of stationary phases- Cyclodextrin and its derivatives to Gas chromatography

Cereal, fruit and vegetable quality--Determination of organophosphorus pesticides--Gas chromatography

Study of the Crystalline Behaviors of Polymer by Inverse Gas Chromatography

Identification of Synthetic Adhesives by Simultaneous Pyrolysis Methylation Gas Chromatography

Petroleum products -- Determination of boiling range distribution -- Gas chromatography method

Determination of the Composition, Distillation and Density of Industrial Hexane by Capillary Gas Chromatography

Determination of the Fatty Acid Composition of Peripheral Blood Mononuclear Cells Phospholipids in Human by Gas Chromatography

Determination of Polarity Terms of Some Nitrogen-Containing Surfactants and Simulated Hydrophobic Tail Models by Gas Chromatography

Determination of the Molecular Weight Distribution of Dodecyl Polyoxyethylene Ether by Gas Chromatography

Identification of Isomer of Volatile Oils in Peppermint Leaves and Its Stalks by Gas Chromatography-Mass Spectrometry

Application of Gas Chromatography-mass Spectrometer in Determining Trimethyl Stannic Chloride in Plastic Products and Stabilizing Agents

Determination and Distribution of Sulfur Compounds in Coked Gasoline by Gas Chromatography-Sulfur Chemiluminescence Detection

Water quality--Determination of volatile halogenated organic compounds--Headspace gas chromatography

Determination of Residual Organic Solvents in Porcine Pulmonary Surfactant by Capillary Gas Chromatography with Headspace Sampling

Direct Injection Gas chromatography for the Determination of Isophorone in the Air of Workplaces

Determination of the menthol compound hydrocortisone suppository by gas chromatography

Determination of Empirical Formulas and Molecular Formulas of Phosphate Ester Compounds by Gas Chromatography-Atomic Emission Detection

Recommendations for a standard layout for methods of chemical analysis by gas chromatography

Investigation on determination of organophosphorus and carbamate pesticide residues from the vegetables by gas chromatography

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Guidelines for tailored analysis

Methods of test for petroleum and its products - Commercial propane and butane - Analysis by gas chromatography

Determination of Phase Inversion Temperature for Calixarene Polysiloxane as Gas Chromatography Stationary Phases

Simultaneous Determination of Imazalil, Thiabendazole and Pyrimethanil Residues in Citrus Fruits by Gas Chromatography

Determining molecular weight distribution of lower alkyl alcohol polyoxyethylene ether by capillary gas chromatography

Examination of the remaining amount of bromomethane in foodstuff with capillary gas chromatography

Estimation and Prediction of Gas Chromatography Retention Time of Components Separated from Bamboo Leaves through MEDV

Application of Simultaneous Pyrolysis Methylation Gas Chromatography to the Identification of Paint Varieties

Testing of liquid mineral oil hydrocarbons; analysis by gas chromatography; determination of oxygenates; flow switching procedure

Determination of Semi- volatile Organic Compounds in Groundwater by Solid phase Extraction- Gas Chromatography- Mass Spectrometry

Thermodynamic Performance of Low Pressure and Thin Coated Column in Gas Chromatography and Its Application

Applications of Gas Chromatography-Mass Spectrometric Quantitative Analysis Technique