Scholarlink

Abstract <p>A method for determining dithionite iron for soil samples and fractions of the order of 20–25 mg with a spectrophotometric detection has been developed and optimized. Unlike the previously described methods, phenanthroline was used as a chromogen, which made it possible to simplify the analysis by eliminating the combustion stage. The procedure for processing samples with citrate-bicarbonate-dithionite extractant has been optimized. The repeatability and intralaboratory reproducibility of the technique are investigated. Verification of the proposed methodology by comparison with the standard one showed good convergence of the results.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Method of Rapid Spectrophotometric Determination of Iron in Dithionite Extracts of Soils

  • 期刊论文

  • 发表日期：

    2025年2月1日

查看全文
  • N. N. Danchenko,
  • E. V. Tsomaeva,
  • D. A. Zhulidova,
  • S. A. Khamatnurov,
  • Z. S. Artemyeva

摘要

Abstract

A method for determining dithionite iron for soil samples and fractions of the order of 20–25 mg with a spectrophotometric detection has been developed and optimized. Unlike the previously described methods, phenanthroline was used as a chromogen, which made it possible to simplify the analysis by eliminating the combustion stage. The procedure for processing samples with citrate-bicarbonate-dithionite extractant has been optimized. The repeatability and intralaboratory reproducibility of the technique are investigated. Verification of the proposed methodology by comparison with the standard one showed good convergence of the results.