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Spectrophotometric determination of trace bismuth with 2,4-dichlorophenylfluorone

Xing‐You Xu

Abstract

AbstrcatIn the presence of Cetyltrimethylammonium bromide(CTMAB) the condition of the color reaction of bismuth with 2,4-Dichlorophenylfluorone was studied. The maximum absorption of Bi-DClPF-CTMAB complex is at 570 nm. The apparent molar absorptivity is 1.48×10~5 L·mol~(-1)·cm~(-1). Beer′s law is obeyed in the range of 0～0.68 μg/mL. The method has been applied to the determination of Bi(Ⅲ) in stomach medicine and steel samples.

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Key concepts: Molar absorptivity, Chemistry, Bismuth, Bromide, Spectrophotometry, Color reaction, Trace Amounts, Absorption (acoustics)