spectrophotometric method

ALUMINIUM OXIDE PRIMARILY USED FOR THE PRODUCTION OF ALUMINIUM. DETERMINATION OF SODIUM. FLAME SPECTROPHOTOMETRIC METHOD (EMISSION).

ALUMINIUM OXIDE PRIMARILY USED FOR THE PRODUCTION OF ALUMINIUM. DETERMINATION OF BORON. CIRCUMIN SPECTROPHOTOMETRIC METHOD.

Rhodamine is usually determined by spectrophotometric method, but it results in big error.

METHODS: The dual-wavelength spectrophotometric method was used for eliminating matual interference.

urine . determination of leaded . spectrophotometric method - diphenylthiocarbazone method.

The total amino acid and polysaccharide contained in spirulina platensis were determined by spectrophotometric method.

Objective: To Establish a fast accurate ultraviolet spectrophotometric method for determination carbazochrome injection content.

The content of para- aminophenol in dye wastewater was determined by spectrophotometric method with Berthelot reagent as an oxidant.

POTASSIUM SULPHATE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT. FLAME EMISSION SPECTROPHOTOMETRIC METHOD.

POTASSIUM CHLORIDE FOR INDUSTRIAL OR AGRICULTURAL USE. DETERMINATION OF POTASSIUM CONTENT. FLAME EMISSION SPECTROPHOTOMETRIC METHOD.

Chemical analysis of steels. Determination of nitrogen content. Molecular absorption spectrophotometric method.

Starches and derived products. Determination of nitrogen content by the kjeldahl method. Spectrophotometric method.

Copper and copper alloys. Determination of phosphorus content. Molecular absorption spectrophotometric method.

METHODS The ultraviolet spectrophotometric method was used to measure P450 concentration of hepatic microsomes.

Steel - Determination of boron content - Curcumin spectrophotometric method after distillation.

A kinetic spectrophotometric method for simultaneous determination of tyrosine and tryptophane with chemometrics was developed.

Chemical analysis of copper and copper alloys. Determination of nickel content. Molecular absorption spectrophotometric method.

Total flavonoids content was also determined to be 3. 36% by spectrophotometric method using rutin as standard sample.

Chemical analysis of ferro-manganese. Determination of phosphorus content. Spectrophotometric method.

POTASSIUM HYDROXIDE FOR INDUSTRIAL USE. DETERMINATION OF SODIUM CONTENT. FLAME EMISSION SPECTROPHOTOMETRIC METHOD.

Steel and iron - Determination of phosphorus content - Phosphovanadomolybdate spectrophotometric method.

Objective: To develop a Triton X-100 solubilization spectrophotometric method for the determination of furaldehyde in the air of workplace.

Chemical analysis of copper and copper alloys. Determination of iron content. Molecular absorption spectrophotometric method.

LEATHERS AND HIDES. CHEMICAL TESTING OF LEATHER. DETERMINATION OF CHROMIUM IN SOLUBLE SUBSTANCES (SPECTROPHOTOMETRIC METHOD).

method for the determination of paraquat residues in cereals , vegetables for export . uv - spectrophotometric method.

Steel and cast iron. Determination of chromium content. Diphenylcarbazide spectrophotometric method.

Chemical analysis of ferro-chromium. Determination of phosphorus content. Spectrophotometric method.

SPICES AND CONDIMENTS. TURMERIC. DETERMINATION OF COLOURING POWER. SPECTROPHOTOMETRIC METHOD.

Methods: The sample crystallized with methanol, and identified by the infrared spectrophotometric method.

Chemical analysis of steel and cast iron. Determination of vanadium content. Molecular absorption spectrophotometric method.

Chemical analysis of ferro-silicon. Determination of phosphorus content. Spectrophotometric method.

stationary source emission . determination of cadmium . graphitic furnace atomic absorption spectrophotometric method.

Thiourea-fluoride spectrophotometric method is adopted to enhance the determination accuracy of bismuth in electrolytic solution of copper.

ANIMAL FEEDING STUFFS. DETERMINATION OF TOTAL PHOSPHORUS CONTENT. SPECTROPHOTOMETRIC METHOD.

CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF AMMONIACAL NITROGEN. SPECTROPHOTOMETRIC METHOD.

stationary source emission . determination of nickel . graphitic furnace atomic absorption spectrophotometric method.

Chemical analysis of steel and cast iron. Determination of nickel content. Molecular absorption spectrophotometric method.

Chemical analysis of steel and cast iron. Determination of cobalt content. Molecular absorption spectrophotometric method.

CHEMICAL ANALYSIS OF CHROMIUM ORES. DETERMINATION OF PHOSPHORUS. SPECTROPHOTOMETRIC METHOD.

municipal sewage . determination of zinc . spectrophotometric method with dithizone.

NITRIC ACID FOR INDUSTRIAL USE. DETERMINATION OF AMMONIACAL NITROGEN CONTENT. SPECTROPHOTOMETRIC METHOD.

The author the sulfate uncertainty has carried on the evaluation to the baryta yellow spectrophotometric method determination water.

Iron ores. Determination of phosphorus content. Molybdenum blue spectrophotometric method.

Iron ores. Determination of manganese content. Periodate spectrophotometric method.

Chemical analysis of ferrous materials. Determination of niobium in steels. Spectrophotometric method.

stationary source emission . determination of tin . graphitic furnace atomic absorption spectrophotometric method.

IRON ORES. DETERMINATION OF TITANIUM CONTENT. DIANTIPYRYLMETHANE SPECTROPHOTOMETRIC METHOD.

IRON ORES. DETERMINATION OF ARSENIC CONTENT. MOLYBDENUM BLUE SPECTROPHOTOMETRIC METHOD.

LIGHT OLEFINS FOR INDUSTRIAL USE. DETERMINATION OF AMMONIA. SPECTROPHOTOMETRIC METHOD.

Chemical analysis of ferrous materials. Determination of bore in steel. Spectrophotometric method.

Chemical analysis of steel and cast iron. Determination of titanium content. Spectrophotometric method.

Iron ores. Determination of silicon content. Reduced molybdosilicate spectrophotometric method.

Chemical analysis of silico-manganese. Determination of phosphorus content. Spectrophotometric method.

A spectrophotometric method for the determination of trace boron in ferrosilicon alloy was proposed.

Chemical analysis of silico-chromium. Determination of phosphorus content. Spectrophotometric method.

Chemical analysis of steel and cast iron. Determination of molydbenum content. Molecular absorption spectrophotometric method.

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

In comparison with general spectrophotometric method, the advantage of this method is that no standard sample is needed for standard curve.

A spectrophotometric method is applied to the determination of total lactone content in Cynanchum Komarovii AL.

Methods: Using ultraviolet spectrophotometric method take place of Electrophotometric method.

Urine-Determination of trichloroacetic acid-Spectrophotometric method.

A rapid, accurate spectrophotometric method of determining the amounts of indigo on dyed yarns and fabrics was presented.

According to the literature, UV spectrophotometric method was developed to determinate the solubility and dissolution of baicalein.

PHOSPHORIC ACID FOR INDUSTRIAL USE. DETERMINATION OF SILICA CONTENT. SPECTROPHOTOMETRIC METHOD USING THE REDUCED SILICOMOLYBDIC COMPLEX.

A spectrophotometric method was studied for the determination of aluminum in vermicelli with Chrome azurol S (CAS).

CHEMICAL ANALYSIS OF COPPER. DETERMINATION OF PHOSPHORUS CONTENT. PART 1 : SPECTROPHOTOMETRIC METHOD WITH MOLYBDOVANADATE.

Uses the baryta yellow spectrophotometric method (hot process).

Zinc and zinc alloys - Chemical analysis - Part 4 : determination of iron in zinc alloys - Spectrophotometric method.

Methods: Does not go to the sugarcoating, Direct ultraviolet spectrophotometric method determination.

The content of aloe amylose was determined by spectrophotometric method.

Iron ores. Determination of copper content. 2, 2`-biquinolyl spectrophotometric method.

Determineted the content of Germannnnium in 9 kinds of Chinese tradition patent medicines by Benzfluorenone Spectrophotometric method.

Aluminium oxide primarily used for the production of aluminium; Determination of sodium content; Flame emission spectrophotometric method

Aluminium oxide primarily used for the production of aluminium; Determination of boron content; Curcumin spectrophotometric method

Spectrophotometric method for determination of Au based on the surface plasma absorption of gold nanoparticles

Fruits, vegetables and derived products; Determination of arsenic content; Silver diethyldithiocarbamate spectrophotometric method

municipal sewage . determination of volatile phenolic compounds . after distillation by means of 4 - aap spectrophotometric method

Municipal domestic refuse. Determination of arsenic. Spectrophotometric method with silver diethyldithiocarbamate

Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method

Determination of Ammonium Perchlorate Concentration in the Air of Production Environment by Spectrophotometric Method

Aluminium and aluminium alloys; Determination of chromium; Spectrophotometric method using diphenylcarbazide, after extraction

Determination of Sulfite in White Granulated Sugar by Formaldehyde Solution Sampling-pararosaniline Hydrochloride Spectrophotometric Method

Fading Spectrophotometric Method for Determination of Sibutramine Hydrochloride with Congo Red and Its Reaction Mechanism

Workplace air--Determination of manganese and its compounds Flame atomic absorption spectrophotometric method

Determination of main ingredients of the Avermectins - Gelatin Microspheres in vitro release by double wavelength spectrophotometric method

Magnesite refractories--Determination of manganese oxide content--Atomic absorption spectrophotometric method

Magnesite-chrome refractories--Determination of manganese oxide content--Atomic absorption spectrophotometric method

Application of Molecular Absorption Spectrophotometric Method to the Determination of Biologic Macromolecular Structures

Workplace air--Determination of nickel and its compounds--Flame atomic absorption spectrophotometric method

Workplace air--Determination of cobalt and its compounds--Flame atomic absorption spectrophotometric method

Workplace air--Determination of zirconium and its compounds--Xylenol orange spectrophotometric method

Water quality - Determination of nickel - Dimethylglyoxime spectrophotometric method

Aluminium and aluminium alloys--Determination of nickel content--Dimethylglyoxime spectrophotometric method

Magnesite-chrome refractories--Determination of potassium oxide and sodium oxide contents--Atomic absorption spectrophotometric method

Nickel--Determination of arsenic, antimony, bismuth, tin and lead contents--Electrothermal atomic absorption spectrophotometric method

Methods of test for petroleum and its products - Determination of phosphorus in gasoline - Spectrophotometric method

Magnesite refractories--Determination of potassium oxide and sodium oxide contents--atomic absorption spectrophotometric method

Silica refractories--Determination of manganese oxide content--Atomic absorption spectrophotometric method

Aluminium and aluminium alloys--Determination of manganese content--Potassium periodate spectrophotometric method

nickel base alloy powder - determination manganese content - sodium potassium periodate spectrophotometric method

workplace air - determination of arsine - silver diethyl dithiocarbamate spectrophotometric method

The Influence of Formaldehyde's Own Concentration to Acetylacetone Spectrophotometric Method Determination Formaldehyde

Aluminium and aluminium alloys; Determination of nickel; Spectrophotometric method using dimethylglyoxime

Determination of phosphorus content of the alkyl amido phosphate ester by ammonium vanadate-molybdate spectrophotometric method

Determination of Hydroxylamine Hydrochloride by Ironic Rhodanate Spectrophotometric Method

water quality - determination of manganese - potassium periodate spectrophotometric method

Methods for chemical analysis of molybdenum--The atomic absorption spectrophotometric method for the determination of magnesium content

Quantitative Analysis of Mannitol in Lactic Acid Bacteria Broth with a Spectrophotometric Method

Copper alloys; Determination of nickel (low contents); Dimethylglyoxime spectrophotometric method

Determination Content of Terramycin Intermediate(pellet) by Ultraviolet Spectrophotometric Method

Inhibitory Discoloration Kinetic-Spectrophotometric Method for the Determination of Trace Magnesium

Methods for chemical analysis of lead concentrates--The atomic absorption spectrophotometric method for the determination of copper content

Determination of Sodium Dodecylbenzene Sulfonate in Environmental Water by Derivative Spectrophotometric Method

Silica refractories--Determination of calcium oxide content and magnesium oxide--Atomic absorption spectrophotometric method

Hygienic determination method of arsenide in air of residential areas--Silver diethyldithiocarbamate spectrophotometric method

Sodium hexafluorosilicate for industrial use; Determination of phosphate content; Molybdovanadate spectrophotometric method

Workplace air--Determination of hydrogen chloride and hydrochloric acid--Mercuric rhodanate spectrophotometric method

Aluminium and aluminium alloys--Determination of titanium content--Hydrogen peroxide spectrophotometric method

Testing of dyestuffs; determination of the relative tinting strength in solutions; spectrophotometric method

Aluminium and aluminium alloys; Determination of magnesium; Atomic absorption spectrophotometric method

Yttrium--Europium oxide--Determination of europium oxide content--Fluorescent spectrophotometric method

Nickel base alloy powder--Determination of manganese content--Sodium (potassium) periodate spectrophotometric method

Methods for chemical analysis of lead concentrates? Determination of silver content? Flame atomic absorption spectrophotometric method

Nickel--Determination of cadmium, cobalt, copper, manganese, lead and zinc contents--Flame atomic absorption spectrophotometric method

Specification for chemical analysis of ferrous materials - Determination of phosphorus in steels and irons - Spectrophotometric method

Microwave Airtight Digestion-An Atomic Absorption Spectrophotometric Method for the Determination of Cadmium in Foodstuff

Aluminium and aluminium alloys--Determination of antimony content--Potassium iodide spectrophotometric method

Water quality? Determination of total phosphorus - Ammonium molybdate spectrophotometric method

Liquefied anhydrous ammonia--Determination of iron content--o-Phenanthroline spectrophotometric method

Direct Determination of Nickel and Manganese in Cobalt Naphthenate by Microemulsion Flame Atomic Absorption Spectrophotometric Method

Potassium sulphate for industrial use; Determination of potassium content; Flame emission spectrophotometric method

Potassium chloride for industrial use; Determination of potassium content; Flame emission spectrophotometric method

In spectrophotometric method determination acrylamide biological protein

Determination of chloramphenicol and furacilinum in the Compound Chloramphenicol Ear Drops by two-wavelength spectrophotometric method

Analysis of aluminium ores - Chemical methods - Method for determination of phosphorus content: spectrophotometric method

Municipal domestic refuse. Determination of mercury. Cold atomic absorption spectrophotometric method

Determination of rhenium in rhenium-tungsten alloys--Spectrophotometric method using dimethylglyoxime

Aluminium ores; Determination of phosphorus content; Molybdenum blue spectrophotometric method

Evaluation of Uncertainty for Air Quality Determination of Formaldehyde by Acetylacetone Spectrophotometric Method

Nickel base alloy powder; Determination of phosphorus content; N-butyl alcohol-chloroform extraction spectrophotometric method

Aluminium and aluminium alloys--Determination of silicon content--Molybdenum blue spectrophotometric method

Study on Quantitative Assay of Chitosan in Compound Sample with a Spectrophotometric Method

Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of cupper content

Nickel--Determination of phosphorus content--Molybdenum blue spectrophotometric method

Water quality - Determination of calcium and magnesium - Atomic absorption spectrophotometric method

Aluminium and aluminium alloys; Determination of nickel; Atomic absorption spectrophotometric method

Aluminium and aluminium alloys; Determination of copper; Atomic absorption spectrophotometric method

Analysis of aluminium ores - Chemical methods - Method for determination of titanium content: spectrophotometric method

Water quality--Determination of anionic surfactants--Methylene blue spectrophotometric method

Vanadium--Determination of iron content--Isoamyl alcohol extraction spectrophotometric method

Nickel--Determination of magnesium content--Flame atomic absorption spectrophotometric method

Standard method for hygienic examination of beryllium in air of residential areas - Morin fluorescence spectrophotometric method

Aluminium ores; Determination of total silicon content; Combined gravimetric and spectrophotometric method

Aluminium and aluminium alloys--Determination of titanium content--Diantipyrylmethane spectrophotometric method

Methods for chemical analysis of bismuth--Determination of silver content--Flame atomic absorption spectrophotometric method

Flame atomic absorption spectrophotometric method for the determination of copper content in ferrotungsten

Aluminium fluoride for industrial use; Determination of sodium content; Flame emission spectrophotometric method

Benzol products of coal carbonization; Determination of total sulphur content; Reduction and spectrophotometric method

Chemical analysis of ferrous materials; determination of nitrogen (trace amounts) in steels; spectrophotometric method

Determination of sulfurated hydrogen in waste gases of pollution resources by simplified methylene blue spectrophotometric method

municipal sewage . determination of aniline compounds . azo spectrophotometric method

Workplace air--Determination of beryllium Morin fluorescent spectrophotometric method

workplace air - determination of hydrogen cyanide and cyanides - sodium isonicotinate - sodium barbiturate spectrophotometric method

Steel and iron - Determination of molybdenum content - Thiocyanate spectrophotometric method

Improvement of the determination of ephedrine in compound furacilin nasal drops by spectrophotometric method

Waste water from manufacturing process--Determination of total nitro compounds--Spectrophotometric method

Fruits, vegetables and derived products; Determination of benzoic acid content; Spectrophotometric method

determination of chlorophyll spectrophotometric method

To Determine Sulfide in Water Using Simplified Methylene Blue Spectrophotometric Method

Fading spectrophotometric method for the content determination of roxithromycin with alizarin

Standard method for hygienic examination of hydrogen sulfide in air of residential areas - Methylene blue spectrophotometric method

Water quality--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method

Determination of the ionization constant of eugenol by the spectrophotometric method

Fading Spectrophotometric Method for the Determination of Gentamycin and Tobramycin with Aniline Blue Water Soluble

Spectrophotometric Method for Determining Lidocaine Hydrochloride with Eosin Methylene Blue

Water quality - Determination of silver - Flame atomic absorption spectrophotometric method

Determination of Pentachlorophenol in Water by Ultraviolet Spectrophotometric Method

The Molybdenum Blue Spectrophotometric Method for the Determination of Silicon Dioxide in Copper Concentrates

Methods for chemical analysis of iron, steel and alloy Curcumin spectrophotometric method for the determination of boron content

Turmeric; Determination of colouring power; Spectrophotometric method

Cryolite, natural and artificial; Determination of silica content; Reduced molybdosilicate spectrophotometric method

Fading Spectrophotometric Method for the Determination of Sodium Hyaluronate with Basic Bisphenylnaphthylmethane Dyes

Aluminium and aluminium alloys--Determination of vanadium content--N-benzoyl-Nphenylhydroxylamine spectrophotometric method

Determination of available silicon in potassium - calcium fertilizer by spectrophotometric method

Kinetic Spectrophotometric Method for the Determination of Sodium Nitroprusside

Aluminium and aluminium alloys--Determination of tin content--Phenyl fluorone spectrophotometric method

Fading Spectrophotometric Method for the Determination of Sildenafil in Pharmaceuticals with Evans Blue

determination of piperine content - spectrophotometric method

Ammonium Molybdate Spectrophotometric Method for Determination of Total Phosphorus in Municipal Sewage Sludge

determination of calcium oxide content - flame atomic absorption spectrophotometric method

Determination of Phenol Using Kinetic Spectrophotometric Method by Methyl Orange as a Indicator

Aluminium and aluminium alloys--Determination of copper content--Oxalyldihydrazide spectrophotometric method

Nickel--Determination of silicon content--Molybdenum blue spectrophotometric method

Determining Nitrate Nitrogen in seawater with Ultraviolet Spectrophotometric Method

Spectrophotometric Method for the Determination of Sildenafil in Pharmaceuticals with Ethyl Eosin

Determination of the index of permanganate in water with double-wavelength spectrophotometric method

Study on Quantitative Assay of Chondroitin Sulfate with a Spectrophotometric Method of Azure A

Steel and cast iron; Determination of nickel content; Dimethylglyoxime spectrophotometric method

Tin-lead solders - Determination of antimony content - Malachite green spectrophotometric method

Vanadium--Determination of silicon content--N-butyl alcohol extraction spectrophotometric method

Chemical analysis of ferrous materials; determination of phosphorus in steels and irons; spectrophotometric method

Detecting the Nondeterministic Degree of Zinc in Water with Atomic Absorption Spectrophotometric Method

Determination of Soluble Silicon in Chemical Fertilizer by Silicon Molybdenum Blue Spectrophotometric Method

Discuss some Questions of Determining Total Phosphorus by Ammonium Molybdate Spectrophotometric Method

Follow Injection Analysis-Spectrophotometric Method for Determination of Phosphorous in Aluminum Alloy

Spectrophotometric Method for the Determination of Iodine in the Iodized Salt by the Discoloring of Methyl Orange

Standard method for hygienic examination of chlorine in air of residential areas - Methyl orange spectrophotometric method

Identification of Paracetamol Tablets by Infrared Spectrophotometric Method

Rubber - Determination of bound styrene content - Spectrophotometric method

Steel - Determination of boron content - Curcumin spectrophotometric method

Improvement of Pretreatment Device for Determining Sulfide in Water with Methylene Blue Spectrophotometric Method

Determination of Trace-tellurium by Spectrophotometric Method Using Quarternary Ammonium Salt as Extractive Agent

Determination of Trace Manganese in Cobalt Oxide at the Presence of Compound Oxidizing Agents by Spectrophotometric Method

Ammonium molybdate spectrophotometric method determination of element phosphorus in waste water

Determination of Trace Vanadium in Environmental Samples by Catalytic Spectrophotometric Method

Improvement on the Spectrophotometric Method to Determine Chromium

Tin-lead solders - Determination of bismuth content - Thiourea spectrophotometric method

Magnesium and magnesium alloys; Determination of silicon; Spectrophotometric method with the reduced silicomolybdic complex

Aluminium and aluminium alloys; Determination of silicon; Spectrophotometric method with the reduced silicomolybdic complex

Steel; Determination of nitrogen content; Spectrophotometric method

Determination of Micro-selenium Content in Nanyang Colour Wheat with Ultraviolet Spectrophotometric Method

Improvement of Determination of Total Phosphorus in Water by Ammonium Molybdenum Spectrophotometric Method

Water quality--Determination of cadmium--Spectrophotometric method with dithizone

Water quality--Determination of sulfide--Methylene blue spectrophotometric method

Phosphoric acid for industrial use; Determination of soluble silica content; Reduced molybdosilicate spectrophotometric method

Tin-lead solders - Determination of zinc content - Flame atomic absorption spectrophotometric method

Chemical analysis of ferrous materials - Determination of boron in steel - Spectrophotometric method

Determination of molybdenum content for compoud fertilizers--Thiocyanate spectrophotometric method

Simultaneous measurement of the contents of calcium and magnesium in kelp by spectrophotometric method

Chemical analysis of ferrous materials - Determination of arsenic in steel and iron - Spectrophotometric method

Air quality; Determination of mass concentration of sulphur dioxide in ambient air; Thorin spectrophotometric method

Water quality--Determination of ammonium--Spectrophotometric method with salicylic acid

Spectrophotometric Method for Determination of Sibutramine Hydrochloride with Ethyl Red

Measurement of platinum and palladium in minerals by spectrophotometric method with foamed plastics enrichment

Determination of Trace Cadmium in Soil Samples by Graphite Furnace Atomic Absorption Spectrophotometric Method

Steel and iron - Determination of titanium content - Diantipyrylmethane spectrophotometric method

Simultaneous determination of hexose and pentose in dietary fibre by H-point standard addition spectrophotometric method

determination of beryllium content - scr spectrophotometric method

Catalytic spectrophotometric method determination of trace mercury

A two-phase system spectrophotometric method for determination of polyethylene glycol in pegylated protein mixtures

Study on Determination of Formaldehyde in Mushroom and Aquatic Products by Acetyl-acetone Spectrophotometric Method

Analysis on Iodine in Spirulina with Microwave Pretreatment Sample-Spectrophotometric Method

Tin-lead solders - Determination of phosphorus content - Phosphor-vanadium-molybdium poly acid-crystal violet spectrophotometric method

Copper and copper alloys; Determination of manganese; Spectrophotometric method

Determination of trace manganese by catalytic kinetic spectrophotometric method

Determination of urea Determination of biuret content Spectrophotometric method

The Detection of Volatile Phenol Content in Water by Ultraviolet Differential Spectrophotometric Method

The determination of trace amount of silver in copper ore by spectrophotometric method after enrichment by polyamide

Determination of Cadmium in Lead Ingot by the Flame Atomic Absorption Spectrophotometric Method

Black pepper and white pepper, whole or ground; Determination of piperine content; Spectrophotometric method