How faster and cheaper to determine chromium by adsorptive cathodic stripping voltammetry in the presence of DTPA and nitrate

被引：10
|
作者：
Korolczuk, M [1 ]
机构：
[1] Marie Curie Sklodowska Univ, Fac Chem, PL-20031 Lublin, Poland
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 367卷 / 08期
关键词：
D O I：
10.1007/s002160000470
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A modification of the voltammetric procedure for the determination of chromium in the presence of DTPA and nitrates was proposed. Morpholinoethanesulfonic (MES) acid and its sodium salt were used for stabilisation of pH instead of acetate buffer. In the presence of MES the determination of chromium can be carried out in the presence of dissolved oxygen without decrease of sensitivity of the measurements. Elimination of the purge step decreases total analysis time and saves gas.
引用
收藏
页码：761 / 762
页数：2
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