生鲜牛乳中过氧化氢的电极检测

优化生鲜牛乳中过氧化氢电极检测的工作条件，研究样品处理方法对检测结果的影响，重点比较电极法与过氧化氢试纸条法和淀粉-碘化钾法的检出率及误判率，验证生鲜牛乳中过氧化氢的电极检测法的可靠性。结果表明：在0～10mg/L和10～80mg/L范围内电极法的检出率为分别为100%和93.33%，误判率为7.14%和7.89%。试纸条法和淀粉-碘化钾法的检出率分别为0%和83.33%，误判率分别为100%和20%。与过氧化氢试纸条法和淀粉-碘化钾法相比，电极法能够对生鲜牛乳中过氧化氢进行定量检测并具有较好的可靠性，有利于实现生鲜牛乳中过氧化氢的快速现场检测。

Electrode Detection of Hydrogen Peroxide in Raw Whole Milk

An analytical method for determining hydrogen peroxide in raw whole milk was developed using a platinum-silver electrode. Electrode working conditions and sample pretreatment were optimized. The results obtained for the positive rate and false positive rate of hydrogen peroxide by the proposed electrode method, hydrogen peroxide test strip method and starch-potassium iodide method were compared to validate the reliability of the electrode method. The electrode method provided detection rates of 100% and 93.33% and false detection rates of 7.14% and 7.89% for hydrogen peroxide in the ranges of 0－10 mg/L and 10－80 mg/L, respectively; in contrast, detection rates of 0% and 83.33% and false detection rates of 100% and 20% were obtained using the hydrogen peroxide test strip method and the starch-potassium iodide method, respectively. In conclusion, the electrode method allows reliable, rapid, on-the-spot quantitative detection of hydrogen peroxide in raw milk.