| 单词 | preconcentration |
| 释义 | 例句释义: 预富集,预选,预浓缩,前浓缩,预先富集,预浓缩系统 1. Hence, the preliminary separation and preconcentration of trace elements from matrix is often required. 因此，从基体中分离和预富集痕量元素显得十分必要。 paper.pet2008.cn 2. A lot of facts have show that the preconcentration has been used for trace analysis with satisfactory result and low detection limit. 大量文献表明预富集技术用于痕量分析取得满意的效果，降低了检测限，提高了灵敏度。 www.chemyq.com 3. Because of the content of microelements is extremely low, the preconcentration is usually necessary. 由于这些微量元素的含量很低，通常在测定前要进行预富集。 www.chemyq.com 4. The composition, work principle as well as measurement and control system of a new X-ray separator for ore preconcentration are presented. 介绍了新型矿石预选设备X射-线分选机的组成、工作原理及其测量操作系统。 www.dictall.com 5. High sensitivity detector and sample preconcentration techniques are often adopted to improve concentration detection limits in CE. 为此，常采用高灵敏的检测器和样品预富集技术来提高毛细管电泳的检测灵敏度。 www.boshuo.net 6. Both batch and column variants of SPE can be used for preconcentration purposes. 固相萃取的分配变量和圆柱变量都可以用于预浓缩的用途。 bbs.instrument.com.cn 7. The single-drop microextraction is a very promising 'environment friendly'technique of separation and preconcentration. 有机化合物的有效方法，是一种有发展前途的的分离富集技术。 www.moderninstrs.org.cn 8. Preconcentration of phthalate esters in environmental aquatic samples by n - octadecyl -bonded membrane extraction . 环境水样中邻苯二甲酸酯固相膜萃取预富集方法。 www.bing.com 9. The preconcentration of lean magnetite ore for discarding the tailings has good economic feasibility. 预选抛尾后的贫磁铁矿分选处理，具有良好的经济可行性。 www.magsci.org 10. In order to improve the detection sensitivity of capillary electrophoresis, various sample preconcentration methods have been developed. 为了提高毛细管电泳的检测灵敏度，多种样品富集的方法得以发展。 www.chemyq.com 1. Spectrophotometric Determination of Trace Protein in Water After Preconcentration on an Organic Solvent-Soluble Membrane Filter 可溶性滤膜富集-分光光度法测定水体中微量蛋白质 www.ilib.cn 2. Discovery and Gold Preconcentration Study of the Lamprophyre Alteration-type Gold Deposits in the Qinling Area 秦岭地区蚀变煌斑岩型金矿的发现及金的预富集研究 service.ilib.cn 3. Standard Test Method for Analysis of Ores, Minerals, and Rocks by the Fire Assay Preconcentration Optical Emission Spectroscopy 用燃烧检测预精选技术对矿石、矿物和岩石做光谱测定分析的标准试验方法 www.isres.com 4. Spectrophotometric Determination of Orthophosphate in Natural Water After Preconcentration by Activated Alumina Micro-column 氧化铝微柱预富集分光光度法测定天然水体中微量磷酸根 www.ilib.cn 5. Ambient air - Determination of total non-methane organic compounds - Cryogenic preconcentration and direct flame ionization detection method 环境空气.全部无甲烷有机化合物的测定.低温预浓缩和直接火焰电离探测法 www.mapeng.net 6. Determination of cadmium in environmental water samples by on-line preconcentration-derivative flame atomic absorption spectrometry 在线富集-导数火焰原子吸收光谱法测定环境水样中镉 service.ilib.cn 7. Determination of Cerium in Fertilizer by Fluorescence Spectrophotometry with Micro-Column Preconcentration in Flow Injection System 流动注射微柱预分离富集荧光光度法测定肥料中的铈 168.160.184.82:8080 8. Preconcentration with Crosslinked Chitosan for Determination of Trace Manganese in Waters by Flame Atomic Absorption Spectrometry 交联壳聚糖预富集火焰原子吸收光谱法测定水中总锰 ilib.cn 9. Determination of trace tantalum in stone coal slag with flow injection-ion exchange separation and preconcentration-spectrophotometry; 研究了流动注射在线离子交换预富集及在线氢化物发生法与原子荧光光谱法的联用技术。 www.dictall.com 10. Novel sample preconcentration techniques for capillary electrophoresis 毛细管电泳分析中的样品预富集新技术 www.ilib.cn 1. Sample Preconcentration Technique in Capillary Electrophoresis 毛细管电泳中的样品浓缩技术 service.ilib.cn 2. Flow Injection on-line Preconcentration with Anion-exchange-resin and Flame Atomic Absorption Spectrometric Determination of Trace Cadmium 阴离子树脂微柱在线预富集火焰原子吸收法测定痕量镉 www.ilib.cn 3. Determination of Platinum Group Elements of Geological Samples by Preconcentration of Nickel Sulfur Assay-Neutron Activation Analysis 镍锍试金富集-中子活化分析测定地质样品中的铂族元素 www.ilib.cn 4. On-column Preconcentration and Determination of Inorganic Anions in Cigarette Samples with Capillary Electrophoresis 在柱双重富集毛细管电泳法测定卷烟样品中的无机阴离子 www.ilib.cn 5. Investigation on Preconcentration and Electrochemical Behaviour of Piperine at TBP Modified Glassy Carbon Electrode 胡椒碱在磷酸三丁酯修饰电极上的电化学行为研究 www.ilib.cn 6. Application of chemically modified electrodes to selective preconcentration and separation 化学修饰电极在选择性富集分离中的应用 www.ilib.cn 7. Applications of Flow Injection Knotted Reactor On-line Separation and Preconcentration Coupled with Atomic Spectrometry 流动注射编结反应器在线分离富集技术在原子光谱中的应用 www.ilib.cn 8. Synthesis and application of an aminophosphonic-carboxylic acid chelating resin for preconcentration of rare-earth elements 氨基膦酸羧酸螯合树脂的合成及其对痕量镧系稀土富集分离性能的研究 www.ilib.cn 9. Determination of trace cadmium in water samples by flame atomic absorption spectrometry with flow injection on-line preconcentration 流动注射在线富集-火焰原子吸收光谱法测定水中痕量镉 www.ilib.cn 10. Determination of trace magnesium by thin layer resin phase spectrophotometry with loading resin preconcentration 负载树脂预富集薄层树脂相分光光度法测定痕量镁 www.ilib.cn 1. Ultra-trace analysis of iridium in coastal seawater sample by neutron activation analysis after anion exchange preconcentration 阴离子交换预浓集-中子活化法测定近岸海水样品中的超痕量铱 service.ilib.cn 2. Chemical Spectrometric Determination of Trace Gold in Plant with Polyurethane Preconcentration 泡沫塑料富集植物样品中痕量金的化学光谱测定 service.ilib.cn 3. Applications of On-line Separation and Preconcentration Techniques in Atomic Absorption Spectrometry 流动注射在线分离浓集技术在原子吸收光谱分析中的应用 www.ilib.cn 4. Determination of Trace Iron in Cobalt Sulfate by AAS after Separation and Preconcentration by Coprecipitation with Cerium Phosphate 磷酸铈共沉淀原子吸收光谱法测定硫酸钴中的痕量铁 www.ilib.cn 5. Determination of Iridium in the Bering Sea and Arctic Ocean Seawaters by Anion Exchange Preconcentration-neutron Activation Analysis 白令海和北冰洋海水中铱的阴离子交换预富集-中子活化分析 168.160.184.82:8080 6. Flame Atomic Absorption Spectrometric Determination of Trace Copper in Water After Its Preconcentration on Chitosan 壳聚糖富集火焰原子吸收法测定水中痕量铜 www.ilib.cn 7. Ion Exchange Preconcentration Technique in Capillary Zone Electrophoresis 毛细管区带电泳的离子交换在柱预富集技术研究 www.ilib.cn 8. Study on spectrophotometric determination of micro iron after preconcentration by micro fitter membranes 微孔滤膜富集测定食品中微量铁的研究 www.ilib.cn 9. Preconcentration and separation of tobacco alkaloids by capillary zone electrophoresis 毛细管区带电泳富集分离烟草生物碱 www.ilib.cn 10. Preconcentration and Separation of Mercury in Environmental Waters with Polyamide and Loading-Polyamide Resin 聚酰胺和负载聚酰胺树脂富集分离环境水中无机汞 www.ilib.cn 1. Determination of Ru in Geological Sample by Polarography after Seperation and Preconcentration Using Ion Exchange Resin 离子交换分离富集极谱法测定地质样品中的钌 www.ilib.cn 2. FAAS Determination of Traces of Copper in Environmental Water After Its Preconcentration on Chromatographic Column 萃取色层富集原子吸收光谱法测定环境水中痕量铜 www.ilib.cn 3. Preconcentration with surfactant-coated alumina column and determination of trace amounts of copper, iron and lead in natural water by FAAS 氧化铝柱富集火焰原子吸收光谱法测定天然水中微量铜、铁、铅 www.ilib.cn 4. Application in Modern Instrumental Analysis Method of Nickel Sulfide Fire Assay Preconcentration of Platinum Group Elements and Gold 铂族元素和金的硫化镍试金预富集在现代仪器分析方法中的应用 www.ilib.cn 5. Determination of Rhenium in Copper Ores by Preconcentration of Polyurethane Foam-Neutron Activation Analysis 泡沫塑料预富集中子活化测定铜矿中的铼 www.ilib.cn 6. Advances in Preconcentration Technique on Column for Capillary Electrophoresis 毛细管电泳柱上富集技术研究进展 service.ilib.cn 7. Determination of Lead and Calcium by Using Combination of Flame Atomic Absorption Spectrometry with Micro-column Preconcentration 微柱富集-原子吸收光谱法在线联用测定铅和钙 www.ilib.cn 8. Studies on the On-line Anion Exchange Preconcentration for Graphite Furnace Atomic Absorption Spectrometry 在线阴离子富集-石墨炉原子吸收光谱法的研究 www.ilib.cn 9. Determination of Rh and Ir in Geological Sample by Polarography After Seperation and Preconcentration with Chelate Resin 螯合树脂分离富集催化极谱法测定地质样品中的铑、铱 www.ilib.cn 10. Technical Transformation of Preconcentration Technology of Meishan Iron Mine 梅山铁矿预选工艺技术改造 www.ilib.cn 1. Production Practice of Improvement of Dry Preconcentration Technology by Magnetic Pulley 干选磁滑轮预选工艺改进的生产实践 www.ilib.cn 2. Separation and preconcentration of trace lead in cobalt sulfate by coprecipitation with cerium phosphate 磷酸铈共沉淀分离富集硫酸钴中痕量铅及铅的原子吸收光谱测定 168.160.184.82:8080 3. Determination of Au in Soil Sample by Polarography after Seperation and Preconcentration with Gold orange-G Chelate Resin 金橙G螯合树脂分离富集极谱法测定土壤样品中的金 www.ilib.cn 4. Determination of Trace Amounts of Cadmium in Seawater by Using On-Line Preconcentration Flow Injection-Spectrophotometry 在线浓缩-流动注射分光光度法测定海水中痕量的镉 ilib.cn 5. Separation and Preconcentration of Trace Platinum and Palladium with p-Sulfophenylaxochomotropic Acid Chelate Forming Resin 对磺基苯偶氮变色酸螯合形成树脂分离富集微量铂和钯 www.ilib.cn 6. Preconcentration processes in waste incineration 废物焚烧预浓缩过程 www.eecz.org.cn 7. Determination of Cadmium at Ultra-trace Level by FI Cold Vapor Generation AAS with On-line Ion Exchange Preconcentration 流动注射在线吸着分离预浓集冷蒸气原子吸收法测定痕量镉 www.ilib.cn 8. Research and Practice of Optimization Ore Crushing and Preconcentration Process 优化碎矿及预选工艺的探索与实践 www.ilib.cn 9. Application of Wet Preconcentration Technique of Powder Ore in Jinling Concentration Mill 粉矿湿式预选在金岭铁矿选矿厂的应用 www.ilib.cn 10. Determination of Ultra-trace Gold in Geochemical Exploration Samples by GFAAS after Preconcentration with Polyurethane Foam 泡沫塑料吸附富集-石墨炉原子吸收光谱法测定勘查地球化学样品中超痕量金 www.ilib.cn 1. Applications of Monoliths in Sample Preconcentration 整体柱在样品预处理中的应用 www.ilib.cn 2. Research of the Preconcentration Technology of Meishan Iron Mine 梅山铁矿预选工艺研究 www.ilib.cn 3. Phosphoric acid preconcentration-An application for low level heat recovery in sulphuric acid technology 磷酸的预浓缩——硫酸装置低温废热的回收利用 www.ilib.cn 4. Determination of Thiodicarb in Air by Polyamide Adsorbent Preconcentration and Gas Chromatography 用聚酰胺吸附剂预浓缩及气相色谱法测定空气中的硫双威 www.ilib.cn 5. On-line Preconcentration of Sample in Capillary Electrophoresis 毛细管电泳中样品的在线富集 service.ilib.cn 6. Determination of Trace Thallium by Platform-GFAAS after Preconcentration with Polyurethane Foam 聚氨酯泡塑吸附-平台石墨炉原子吸收法测定痕量铊 service.ilib.cn 7. In Situ Preconcentration and Determination of Trace Lead in Water Sample with Amberlite XAD-2 Functionalized with Dithizone 2键合双硫腙螯合树脂现场预富集测定水中痕量铅 www.ilib.cn 8. Preconcentration of raw boron mineral in boric acid production process 硼酸生产中原矿的一种预浓缩技术研究 www.ilib.cn 9. Development of Preconcentration for Mass Spectrometry in Proteomics 蛋白质组学中质谱分析前的预富集研究进展 www.ilib.cn 10. Study on Te-coprecipitates for separation and preconcentration of gold, platinum, palladium 分离富集金、铂、钯的碲共沉淀物研究 www.ilib.cn 1. Tests and Analysis of Wet Preconcentration of Lean Magnetite Ore 贫磁铁矿的湿式预选试验及分析 www.ilib.cn 2. Design and Research of Dedusting in Jingtieshan Ore Preconcentration 镜铁山矿矿石预选除尘设计及研究 www.ilib.cn 3. Method of Separation and Preconcentration of Metal Ions 金属离子分离富集方法的研究 www.ilib.cn 4. Investigation and Practice of Preconcentration Technique in Treating JISCO Huashugou Red Iron Ore 酒钢桦树沟红铁矿预选研究及应用 www.ilib.cn 5. FAAS Determination of Trace Amounts of Cu in the Chinese Herbal Medicine after Its Preconcentration on Chitosan 壳聚糖预富集火焰原子吸收光谱法测定中草药中痕量铜 www.ilib.cn 6. On-line Preconcentration of Cd, Cu and Pb for Graphite Furnace AAS 石墨炉原子吸收光谱法测定水中镉铜铅的在线富集预处理 www.ilib.cn |
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