Citation: Zhen Jun WANG, Zheng Hua SONG. Chemiluminescence Determination of Benzoic Acid Using A Solid-Phase Verdigris Reactor[J]. Chinese Chemical Letters, ;2003, 14(3): 283-286. shu

Chemiluminescence Determination of Benzoic Acid Using A Solid-Phase Verdigris Reactor

Department of Chemistry, Northwest University, Xian 710069

Received Date: 29 April 2002

A new chemiluminescence flow system has been developed for sequential determina-tion of benzoic acid based on the reaction of the compound with copper carbonate entrapped in a solid-phase reactor. It was found that the unsaturated complex of Cu(Ⅱ) and benzoic acid (1:1) has strong catalytic effect on the luminol-H₂O₂ chemiluminescence reaction. The calibration graph is linear over the range of 0.025~60 μg/mL of benzoic acid, with a relative standard deviation of less than 3.0%, and the detection limit is 0.01μg·mL^-1. The proposed method was applied to the determination of benzoic acid content in different pharmaceutical formulations.
- Benzoic acid,
- chemiluminescence,
- solid-phase reactor,
- pharmaceutical formulations
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