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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 22, Number 6
BKCSDE 22(6)
June 20, 2001

Title	Establishment of the Spectral Correction Matrix and Simultaneous Determination of Iron and Zinc with 1-(6-Bromo-2-Benzothiazolylazo)-2-Naphthol as Chromogenic Agent
Author	Hong-Wen Gao, Yu-Cheng Li, Qing-Song Ye
Keywords	Spectral correction technique, Matrix, Simultaneous determination of Fe and Zn, 1-(6-Bromo-2-benzothiazolylazo)-2-naphthol (BBTAN).
Abstract	The spectral correction matrix has been established to study the simultaneous complexations between metals and a ligand, and it eliminated the mutual influence among the complexes. The two sensitive reactions between iron (II) and 1-(6-bromo-2-benzothiazolylazo)-2-naphthol (BBTAN) and zinc (II) and BBTAN have been investigated and applied to the simultaneous determination of Zn and Fe at pH 8.5 in the presence of triton x-100. This method gave the simple determination of the characteristic constants of the complexes. For the analysis of natural water, foods and other samples, the recoveries of Fe and Zn were between 92 and 109% and between 91 and 104%, and their relative standard deviations were less than 5.5 and 11%, respectively.
Page	565 - 569
Full Text	PDF

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