The use of the reference element method for stripping voltammetric analysis of natural waters

✍ Scribed by Khiena Z. Brainina; Elena A. Vilchinskaya; Rosa M. Khanina; Lyubov N. Kalnishevskaya

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 467 KB
• Volume: 4
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/elan.1140040507

✦ Synopsis

Abstract

An internal standard method is proposed in the stripping analysis of natural waters. The method consists of the introduction into the sample solution of a reference element and subsequent calculation of the concentration of several elements by the increase in the analytical signal from the reference element. Criteria of the reference element selection are given. Calculated proportionality factors k obtained with the use of solutions simulating sea and river waters under the same experimental conditions can be applied to the determination of copper(II), lead(II), and cadmium(II) in natural waters. The use of the internal standard method allows one to substantially shorten the time of analysis (3–5 minutes instead of 30–50 minutes) and to improve accuracy and reproducibility of the analytical data.