traces of heavy metals

A ternary association complex[MIn+1]-[MB]+,which were formed by metals ions(Mn2+),iodine anion(I-)and methylene blue(C16H18ClN3S·3H2O,MB),was applied in the preconcentration of trace heavy metals(i.

在酸性条件下,利用金属离子、碘离子和亚甲蓝形成一种三元缔合物[MIn+1]-[MB]+,该缔合物极易溶于甲苯,通过N2能浮选于甲苯中,分光光度法测定,据此建立了复杂基质样品中痕量重金属银、铜、镉、铅的检测新方法。

Having carried out a large number of experiments, this paper inquires into the application of the online enrichment device in the flame atom absorption, the optimum experiment conditions of the trace heavy metal in the water are measured, the foundation is established for the application of the online enrichment device to monitor the environment.

通过大量实验探讨了在线富集装置应用于火焰原子吸收法,测定水中痕量重金属时的最佳实验条件,为在线富集装置在环境监测中的应用,奠定了基础。

The analyzing trace heavy metals are Pb、Cd and Cr with the raw coals include Pingdingshan bituminous coal, Jiaozuo anthracite coal, and Liupanshui lean coal.

选用的煤种为河南平顶山烟煤、河南焦作无烟煤和贵州六盘水贫煤3个煤种,分析的痕量元素为Pb、Cd和Cr3种痕量重金属元素。

This paper investigates the effects of chelating agent,modifier(ethanol) amount,temperature,pressure and extraction time on supercritical CO2 chelating-extraction of trace heavy metal ions from calcium lactate.

以乙醇为改性剂,超临界CO2络合萃取乳酸钙中痕量重金属离子。

The influence of wind-wave disturbance on colloidal trace metals in the waters of Taihu Lake.;

风浪扰动对太湖水体中胶体态痕量金属含量的影响

The exchange adsorption mechanism effect of trace metal on syspended particles;

痕量金属在悬浮颗粒物上的吸附交换机理

A summarization of the interaction of colloidal particles and trace metal in natural water;

天然水体中胶体粒子与痕量金属相互作用研究

Development of flow injection-chemiluminescence method in determination of trace metals;

流动注射化学发光法测定痕量金属元素的进展

The different supplement dosage of trace metals Fe,Co,Ni on the improvement of the anaerobic digestion of Solid Waste from farming trade market is studied.

在完全混合工艺条件下对农贸市场的固体废弃物进行厌氧消化,分析消化过程中pH值、VFA(挥发性脂肪酸)、COD(化学需氧量)和产气量等随时间的变化情况,研究不同投加量的痕量金属Fe、Co、Ni对农贸市场固体废弃物厌氧消化的促进作用。

Based on correlation coefficients and principal component analysis, Fe and Al were selected as the concentration normalizer for the different trace metals.

由相关系数和主成份分析 ,选择铁和铝作为沉积物中痕量金属浓度的均一化元素 。

Study on the Method of Rapid Test for Trace Heavy Metals in the Air of Workplaces

工作场所空气中痕量重金属速测方法的研究

Application of Matrix Modifier to the Determination of Trace Heavy Metals in Seawater

基体改进剂在海水痕量重金属测定中的应用

Study on Removal of Trace Heavy Metal Ions by Chelating Reaction-Reverse Micelles in Supercritical Carbon Dioxide

超临界CO_2中络合-反胶团萃取痕量重金属的研究

Review of Progress on the Applications of Nanometer Material in Determination of Trace Heavy Metal Ions

纳米材料在痕量重金属离子测定中的应用

Determination of Trace Lead by Near Infrared Spectroscopy with Online Enrichment Technique

在线富集近红外光谱法测定痕量重金属铅

SIMULTANEOUS DETERMINATION OF TRACE COPPER,LEAD,CADMIUM,ZINC,NICKEL AND COBALT IN FINGERNAILS BY DIFFERENTIAL PULSE VOLTAMMETRY

示差脉冲伏安法同时测定指甲中痕量重金属(铜、铅、镉、锌、钴、镍)

Study on Rapid-determining Cadmium、Mercury and Lead by Test Paper;

试纸法快速测定环境水样中痕量重金属镉、汞、铅的研究

Application of Ion-exchange Spectrophotometric Determination of Trace Heavy Metals in Collagen;

离子交换光度法测定水解胶原蛋白中的痕量重金属

Study on Determination of Trace Heavy Metal Ions in Water by Solvent Sublation-Atomic Absorption Spectroscopy;

溶剂浮选—原子吸收光谱法测定水中痕量重金属离子的研究

Preparation of Novel Materials for Solid-phase Extraction and Their Separation Properties for Trace Heavy Metal Elements;

新型固相萃取材料的制备及其对痕量重金属的分离富集

OPTIMIZATION CF SEPARATION CONDITIONS FOR HIGH PERFORMANCE ION EXCHANGE CHROMATOGRAPHY AND FAST CONTINUOUS DETERMINATION OF TRACE HEAVY METAL IMPURITIES IN NOBLE METALS

高效离子交换色谱分离条件最优化和贵金属中痕量重金属杂质的快速连测

Application of thiol cotton concentration and separation technique for the purification of chemical reagents

巯基棉富集分离技术在化学试剂提纯上的应用——盐类中痕量重金属杂质的去除

Application of the Online Enrichment Device in the Flame Atom Absorbing Law to Measure the Optimum Experiment Conditions of the Trace Heavy Metal in the Water;

在线富集装置应用于火焰原子吸收法测定水中痕量重金属最佳实验条件探讨

Study on the Speciation Distribution of Heavy Metals in Coal Ash and Cinder of in Power Plant in Chongqing

重庆某电厂灰渣中痕量金属元素形态分布研究

Determination of trace elements in seawater and application for identification of source of trace metal contaminants

海水中痕量元素测定及其在重金属污染源判别方面的应用

Simultaneous Determination of Trace Metallic and Non-Metallic impurities in Ultra-Pure Water by ICP Spectrometry

超纯水中痕量金属和非金属杂质的同时测定

Application of Determination of Trace Precious Metals by ICP-MS

ICP-MS法在测定痕量贵金属中的应用

Electrolytic Separation-chemiluminescence Determination of Trace Metal lon in Water--Determination of Trace Amount of Cu(Ⅱ) Ion in Natural water

电解分离-化学发光法测定水中痕量金属——天然水中痕量铜(Ⅱ)的测定