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Study on the synthesis of 2-(2-quinolinylazo)-1,3-diaminoaniline and its application for the spectrophotometric determination of cobalt

Hu Qiu

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Abstract

Quinolinylazo) 1,3 diaminoaniline(QADAB) was synthesized,and its color reaction with cobalt(Ⅱ) was studied.In the medium of CTMAB and pH 5.0 buffer solution,QADAB reacted with cobalt(Ⅱ) to form a stable 2∶1 complex.The molar absorptivity was 8.29×10 4L·mol -1 ·cm -1 at 595 nm.Beer′s law was obeyed in the range of 0.01～0.4 mg/L.This method was applied to the determination of cobalt in environmental samples with good results.

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What this paper is about

Quinolinylazo) 1,3 diaminoaniline(QADAB) was synthesized,and its color reaction with cobalt(Ⅱ) was studied.In the medium of CTMAB and pH 5.0 buffer solution,QADAB reacted with cobalt(Ⅱ) to form a stable 2∶1 complex.The molar absorptivity was 8.29×10 4L·mol -1 ·cm -1 at 595 nm.Beer′s law was obeyed in the range of 0.01～0.4 mg/L.This method was applied to the determination of cobalt in environmental samples with good results.

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Available abstract

Quinolinylazo) 1,3 diaminoaniline(QADAB) was synthesized,and its color reaction with cobalt(Ⅱ) was studied.In the medium of CTMAB and pH 5.0 buffer solution,QADAB reacted with cobalt(Ⅱ) to form a stable 2∶1 complex.The molar absorptivity was 8.29×10 4L·mol -1 ·cm -1 at 595 nm.Beer′s law was obeyed in the range of 0.01～0.4 mg/L.This method was applied to the determination of cobalt in environmental samples with good results.

Key concepts: Cobalt, Chemistry, Molar absorptivity, Color reaction, Spectrophotometry, Molar ratio, Nuclear chemistry, Buffer solution

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Study on the synthesis of 2-(2-quinolinylazo)-1,3-diaminoaniline and its application for the spectrophotometric determination of cobalt — Research Paper | ScholarLens