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Rapid chromite dissolution using a manganese dioxide-lithium sulphate-sulphuric acid mixture for matrix-independent determination of chromium

✍ Scribed by P. Chattopadhyay; M. Mistry

Book ID: 102622975
Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 495 KB
Volume: 295
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(94)80238-6

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✦ Synopsis

A mixture of manganese dioxide-lithium sulphate-sulphuric acid has been used for accurate and precise estimation of chromium in various chromite matrices. Inter-method comparison studies show that the proposed procedure can be used for a quality control programme and in the evaluation of reference materials. The method is very simple and easily adaptable and involves no separation of the analyte from the matrix elements. Sample decomposition is straight forward (0.2 g of sample + 0.3 g of MnO, + 1.0 g of Li,SO, + 10 ml of H,O + 20 ml of 36 M H,SO,).

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