| Chemiluminescence Determination of Benzoic Acid Using A Solid-Phase Verdigris Reactor |
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| 作者姓名： | Zhen Jun WANG* Zheng Hua SONG |
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| 作者单位： | Zhen Jun WANG*，Zheng Hua SONG Department of Chemistry，Northwest University，Xian 710069 |
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| 摘 要： | Benzoicacidisacommonadditiveusedwidelyasfoodpreservativeandplasticizer.Itcouldpromoteseverereactiontoallergicpopulationevenatlowconcentrationlevel1.Routinemethodsfortheassayofbenzoicacidincludeschromatographic2-6,spectrophotometry7,8,capillaryelectrophoresis9-13andelectrochemicaltitration14.Stokes15etal.monitoredairbornebenzoicacidbasedonsurface-enhancedRamanscatteringtechniques.Thereisalsoreportonamicrobialsensorusingpseudomonasforbenzoicacidandtheirderivativesinaqua16.Interestofusinglumines…
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| 关 键 词： | 碱式碳酸铜 固相反应剂 苯甲酸 化学发光分析 过氧化氢 催化氧化 检测 |
Chemiluminescence Determination of Benzoic Acid Using A Solid-Phase Verdigris Reactor |
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| 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. |
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| Authors: | Zhen Jun WANG Zheng Hua SONG |
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| Abstract: | 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. |
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| Keywords: | Benzoic acid chemiluminescence solid-phase reactor pharmaceutical formulations |
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