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. 1978 Oct 3;543(2):264-8.
doi: 10.1016/0304-4165(78)90072-7.

An ultramicro method for analysis of lithium and other biologically important cations

B E Ehrlich, J M Diamond

An ultramicro method for analysis of lithium and other biologically important cations

B E Ehrlich et al. Biochim Biophys Acta. .

Abstract

A new method for Li+ analysis by flameless atomic absorption spectroscopy is several orders of magnitude more sensitive than previous methods. Li+ quantities as small as 1 - 10(-12) mol, or Li+ concentrattions as low as 1 - 10(-8) M, can determined with a coeffient of variation of 2--4%. The same technique can determine approx. 1 - 10(-14) mol of Ca2+ and Mg2+, and approx. 1 - 10(-13) mol of Na+ and K+.

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