Substoichiometric isotope dilution determination of manganese in biological smples using 2-thenoyltrifluoroacetone in isobutyl methyl ketone |
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Authors: | GS Chute RG Weginwar AN Garg |
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Institution: | Department of Chemistry, Nagpur University, Nagpur-440010 India |
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Abstract: | A substoichiometric isotope dilution method was developed for the determination of microgram amounts of manganese. The method involves the use of carrier-free 54Mn with Mn(II) carrier and its complexation with 2-thenoyltrifluoroacetone (TTA) at pH 8.5, the complex then being extracted into isobutyl methyl ketone. A minimum of 50 ng of manganese can be determined. The method was applied to the determination of manganese in several standard reference materials and biological samples such as tea leaves, spices and condiments. The method is simple and fast and yields results with high accuracy and precision. |
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Keywords: | Manganese Biological samples Foods Spices |
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