首页   按字顺浏览 期刊浏览 卷期浏览 Neotetrazolium Chloride — A New Analytical Reagent for Determination of Chromium
Neotetrazolium Chloride — A New Analytical Reagent for Determination of Chromium

 

作者: Mary Kamburova,  

 

期刊: Analytical Letters  （Taylor Available online 1997）
卷期: Volume 30, issue 2  

页码: 305-316

 

ISSN:0003-2719

 

年代: 1997

 

DOI:10.1080/00032719708002804

 

出版商: Taylor & Francis Group

 

关键词: Chromium determination;Extraction;Extraction-Spectrophotometry;Steels;Soils;Plants

 

数据来源: Taylor

 

摘要:

The optimum conditions for the formation of an ion-associate between chlorochromate ion and Neotetrazolium chloride (NTC) were found. The molar ratioNTC:Crin the extracted ion-associate was found to be 1:2. Beer's law was obeyed in the range 0.05 – 1.5 μg ml−1Cr(VI). The molar absorptivity determined at 255 nm, was 3.12±0.06 × 104L mol−1cm−1. The method was used for determination of chromium in steels, various types of soils and plants.

 

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