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- W2364556964 abstract "A new reagent 1-(8′-(5′-sulfoquinoline))-3-(p-nitrophenyl)triazene(SQNPT) was synthesized and characterized.The possibility of this reagent for the application as a chromogenic reagent for determination of Cu2+ was studied.It was found that an amaranth complex with a maximum absorption wavelength at 596 nm and a molar absorptivity of 5.75×104 L·mol-1·cm-1 was formed between SQNPT and Cu2+ in Na2B4O7 buffer solution(pH 9.0) in the presence of the emulsifier OP.The Beer′s law was obeyed at a Cu2+ concentration range of 0.05～0.48 μg/mL.The method has been satisfactorily used for the determination of copper in food samples." @default.
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- W2364556964 date "2007-01-01" @default.
- W2364556964 modified "2023-09-28" @default.
- W2364556964 title "Study on the synthesis and color reaction of 1-(8′-(5′-sulfoquinoline))-3-p-nitrophenyltriazene with copper" @default.
- W2364556964 hasPublicationYear "2007" @default.
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