Direct flame atomic absorption spectrophotometric determination of Mn in rocks, nodules, soils and related materials using tartaric acidKClSrCl(2) mixture.
A mixture of tartaric acid-potassium chloride and strontium chloride has been used for accurate and precise estimation of manganese in various international reference rocks, nodules, soil and related samples by flame atomic absorption spectrophotometry (FAAS). The method is fairly rapid and involves no separation of the analyte from the matrix elements. Sample decomposition is straight-forward (2:1 mixture of hydrogen fluoride and perchloric acid). Forty-seven well characterized standard reference samples of diverse matrices have been analysed and the results are compared with the reported data.
Chattopadhyay
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Regional Research Laboratory, Central Physico Chemical and Analytical Facilities Division, Bhubaaneswar-751013, India.
Sahoo
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