| 流动注射化学发光法测定面粉中过氧化苯甲酰 |
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| 引用本文： | 吴迎春,聂 峰.流动注射化学发光法测定面粉中过氧化苯甲酰[J].食品科学,2010,31(22):439-441. |
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| 作者姓名： | 吴迎春 聂 峰 |
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| 作者单位： | 陕西理工学院化学与环境科学学院 |
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| 基金项目： | 陕西省自然科学基础研究基金项目(2010JM7016(1)) |
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| 摘 要： | 目的：建立面粉中过氧化苯甲酰含量测定的化学发光新方法。方法：过氧化苯甲酰氧化KI 生成I2，该反应和luminol-H2O2 化学发光体系相耦合，进而对面粉中的过氧化苯甲酰进行测定。结果：方法的线性范围为3.0 × 10-8～4.0 × 10-6g/mL，检出限为4.0 × 10-9g/mL， RSD 为2.2%(质量浓度5.0 × 10-8g/mL，11 次平行测定)。结论：该方法具有简单、灵敏、线性范围宽的优点。
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| 关 键 词： | 流动注射 化学发光法 过氧化苯甲酰 |
| 收稿时间： | 2010-06-28 |
Determination of Benzoyl Peroxide in Flour by Flow Injection Chemiluminescence Method |
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| WU Ying-chun,NIE Feng.Determination of Benzoyl Peroxide in Flour by Flow Injection Chemiluminescence Method[J].Food Science,2010,31(22):439-441. |
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| Authors: | WU Ying-chun NIE Feng |
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| Affiliation: | School of Chemical and Enviromental Science, Shaanxi University of Technology, Hanzhong 723001, China |
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| Abstract: | Objective: To develop a new flow injection chemiluminescence method for determining benzoyl peroxide in flour. Methods: KI can be oxidized by benzoyl peroxide to produce I2. This reaction is coupled with a luminal-H2O2 chemiluminescence system to determine benzoyl peroxide in flour. Results: The determination range of this method is 3.0 × 10-8－4.0 × 10-6 g/mL, and the detection limit of this method is 4.0 × 10-9 g/mL with a relative standard deviation of 2.2%. Conclusion: This method is characteristics of simple, high selectivity, accuracy and sensitivity. |
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| Keywords: | flow injection chemiluminescence benzoyl peroxide |
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