“…Most of the polarographic determinations of amino acids are done indirectly. Tyrosine (226) and tryptophan are determined by nitrating beforehand to reducible derivatives (17,224). Ethylenediaminenitrilotriacetic acid and ethylenediaminetetraacetic acid are determined by conversion to the reducible copper complex (75).…”
Section: Amines Amino Acids and Derivativesmentioning
“…Most of the polarographic determinations of amino acids are done indirectly. Tyrosine (226) and tryptophan are determined by nitrating beforehand to reducible derivatives (17,224). Ethylenediaminenitrilotriacetic acid and ethylenediaminetetraacetic acid are determined by conversion to the reducible copper complex (75).…”
Section: Amines Amino Acids and Derivativesmentioning
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