Rapid polarographic method for determining arsenic in steel |
| |
| Authors: | Elenkova N G Tconeva R A Nedeltcheva T K |
| |
| Affiliation: | Department of Analytical Chemistry, Higher Institute of Chemical Technology, Sofia 56, Bulgaria. |
| |
| Abstract: | ![]()
A simple and sensitive polarographic method for determining arsenic in steel is presented. The steel is dissolved in HNO(3), and arsenic reduced with Na(2)S(2)O(5)-K.I. The polarographic wave is recorded for an electrolyte at pH 3.0 and containing Fe(II), Mn(II). citric and ascorbic acids. Levels of 0.2% and 0.003% As can be determined with a coefficient of variation of +/- 6%. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
