Solid-phase extraction ( SPE) is an effective tool for the preconcentration of trace elements and their separation from various sample constituents. 以及从复杂组成样品中将其分离出来的有效工具。
Oscillopolarographic Determination of Trace Amounts of Tellurium in Steel and Alloys after Separation with Sulfhydryl Cotton 巯基棉分离-示波极谱法测定钢铁和合金中痕量碲
Pre-column Derivatization-GC Determination of Trace Amounts of Phenol in Water After Separation by Micro-wave Heated Extraction 微波萃取-柱前衍生-气相色谱法测定水中痕量苯酚
Studies of Trace Noble Metals after Separation and Preconcentration with Macroporous Adsorption Resin Immobilized Tannins and Determination by Atomic Absorption Spectrometry 固化单宁树脂分离富集&原子吸收法测定痕量贵金属的研究
Adjustment and operation of trace total hydrocabon gas chromatographic analyzer used on air separation unit 空分装置痕量总烃色谱分析仪的调试及运行
Application and maintenance of trace water analyzer in air separation unit 微量水分析仪在空分设备中的应用与维护
Determination of Trace Polycyclic Aromatic Hydrocarbons in Water and Its Separation Characteristics of Nanofiltration Membrane 水中痕量多环芳烃类物质的分析检测及纳滤去除特性研究
UV Spectrophotometric Determination of Trace Amounts of Doxycycline in Water with Separation and Enrichment by Gas Floatation floating-point adder 气浮浮选分离富集-紫外分光光度法测定水中痕量强力霉素
PAR Photometric Determination of Trace Amounts of Cadmium After Separation and Enrichment from PVA-H_2O-Acetone System 聚乙烯醇-水-丙酮体系分离富集-PAR光度法测定环境水样中痕量镉
Determination of trace vanadium by catalytic fluorescence quenching method after separation and preconcentration by ion exchange resin 离子交换树脂分离富集-催化荧光猝灭法测定痕量钒
The Separation of Trace Components in Rare Solution and the Choice of Separation Method 稀溶液中微量组分的分离与分离方法选择
Determination of Trace Gold by FAAS with PVBS Chelating Resin Separation and Preconcentration PVBS树脂分离富集-火焰原子吸收法测定痕量金
Usually the main difficulty in determination of trace boron is its unsta-ble recovery in preliminary separation. 通常测定痕量硼的主要困难是分离过程中硼的回收率不稳定。
A new method for trace Zn ( II) preconcentration and separation was described using microcrys-talline phenolphthalein modified by crystal violet as an adsorbent coupled with the determination by spectrophotometry. 建立了一种利用修饰有结晶紫(CV+)的微晶酚酞作为固态吸附剂分离富集溶液中痕量Zn(II)的新方法,富集后的Zn(II)含量可直接用光度法测定。
Determination of Total Trace Rare Earth by Separation and Enrichment with Liquid Membrane and Spectrophotometry 液膜分离富集、分光光度法测定微量稀土总量
Determination of trace silver in superalloys by ICP-MS after complexing separation with ammonia 氨水络合分离-电感耦合等离子体质谱法测定高温合金中痕量银
Application of 3000 TA Trace Oxygen Analyzer in Air Separation Production 3000TA微量氧分析仪在空分生产中的应用
Study on the Determination of Trace Titanium with Salicyl fluorone by Phase Separation Photometric method 水杨基荧光酮析相光度法测定(微)痕量钛的应用研究
Study on the determination of trace copper by using the phase separation spectrophotometry with triazene reagent 三氮烯试剂析相光度法测定痕量铜的研究
Determination of 18 kinds of trace impurities in UF 4 samples by extraction separation chemical spectrum method 萃取分离-化学光谱法测定UF4中18种微量杂质元素
Determination of Trace Cadmium in Environmental Samples by Nanometer-Titanium Dioxide Separation/ Preconcentration-Graphite Furnace Atomic Absorption Spectroscopy 纳米二氧化钛分离/富集-石墨原子吸收光谱法测定环境样品中痕量镉
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
Experiment conditions using differential pulse polarography have been studied. The direct determination of trace arsenic in sulphur without separation was established. 采用微分脉冲极谱法研究了各项实验条件,建立了直接测定硫中微量砷的方法。
Direct Analysis of Trace Rare Earth Elements Through Nanometer-size Titanium Dioxide Separation/ Concentration and Fluorination Assisted ETV-ICP-AES with Slurry Sampling 纳米TiO2材料分离富集、悬浮体进样氟化辅助ETV-ICP-AES直接分析痕量稀土元素
Selective adsorption of a crown-ether polymer for trace u(ⅵ) and its use in separation 高分子冠状聚合物对痕量铀(Ⅵ)的选择性吸附及其在分离中的应用
The method to determine trace gold in rock salt samples with ion exchange separation and enrichment is approached. 探讨了用离子交换分离富集极谱法测定岩矿样品中的痕量金的方法。
Relying on the good chelate ability, thiourea and its derivatives also could be used in the extraction of trace metal and the separation of platinum group metals, and may be applied in the anion acceptor recognition. 利用硫脲的络合作用可以富集和分离提纯铂族金属元素,硫脲配合物同样也可以用于识别阴离子受体等。
The chemistry composition in the food is very complicated, in addition to the nutritious materials such as protein, carbohydrate and fat etc., food often includes some beneficial and harmful trace elements or components, so the separation and analysis of food are very difficulty. 食品中所含的化学成分非常复杂,除了含有常量的蛋白质、碳水化合物和脂肪等营养物质之外,还包含了一些有益的或有害的微量或痕量物质,因此食品的分离分析极其困难。