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Citation: LI Bao-Xin, WANG Dong-Mei, ZHANG Zhu-Jun. Quantitative Analysis of Trace Sodium Sulfoxylate Formaldehyde in Foods[J]. Chinese Journal of Applied Chemistry, ;2004, 21(12): 1326-1328. shu

Quantitative Analysis of Trace Sodium Sulfoxylate Formaldehyde in Foods

1.
School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062

Corresponding author: ZHANG Zhu-Jun,
Received Date: 18 February 2004
Available Online: 28 June 2004
Fund Project: 霍英东教育基金会(81013) (81013)化学生物传感与计量学国家重点实验室开放基金(200217)资助项目 (200217)

A catalytical spectrophotometry method for the quantitative analysis of trace sodium sulfoxylate formaldehyde in foods is proposed based on the catalytical activity of sodium sulfoxylate formaldehyde in the oxidation reaction of Brilliant cresyl blue by BrO₃^- in H₂SO₄. The concentration range where the response in linear is from 5×10^-9 to 1.52×10^-5 g/mL, with a detection limit of 2×10^-9 g/mL. The suggested method was satisfactorily used to determine trace sodium sulfoxylate formaldehyde in foods.
- sodium sulfoxylate formaldehyde,
- catalytical spectrophotometry,
- Brilliant cresyl blue,
- food analysis
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