Citation: Shu Ping XU, Huan Wen CHEN, Ai Min YU, Qin Han JIN, Hua Ying LIAO. Rapid In-situ Determination of Chromium (VI) in Water Using Modified Diphenylcarbazine with Citrate[J]. Chinese Chemical Letters, ;2002, 13(7): 660-661. shu

Rapid In-situ Determination of Chromium (VI) in Water Using Modified Diphenylcarbazine with Citrate

1.
Changchun R & D Center for Analytical Instruments, Department of Chemistry, Jilin University, Changchun 130023;
2.
Key Laboratory for Supramolecular Structure and Spectroscopy of Ministry of Educational, Jilin University, Changchun 130023;
3.
East China Geological Insitute, Linchuan 344000

Received Date: 2 July 2001
Revised Date: 11 April 2002

Diphenylcarbazine citrate was synthesized and a high-speed color reaction of the new reagent with Cr (VI) was developed and used to determine trace Cr (VI) in elcctroplating water.In acid medium, diphenylcarbazine citrate reacted with Cr (VI) to form a magenta-colored complex.The molar absorptivity of the complex is 3.32×10⁴ L·mol^-1·cm^-1 at 540 nm. Beer's law is obeyed for Cr (VI) in the range of 0.03~2.00 mg/L. Contents of Cr (VI) in electroplating waste water was determined in-situ and satisfactory results were obtained.
- Portable photometer,
- Cr(VI),
- diphenylcarbazine citrate,
- in-situ determination
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