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目的分析大肠菌群纸片法与乳糖发酵法检验大肠菌群的阳性符合率,为节省财力、物力及监测工作者采样携带方便提供依据。方法纸片法和发酵法。结果用两种不同方法检测餐具500件,其中纸片法检出阳性23件,阳性率为4.6﹪;发酵法超标22件,超标率为4.4﹪.经卡方检验差异无统计意义(χ2=0.0232,P>0.05)。两种方法结果符合率为95.6﹪。冷饮50件,纸片法检出阳性2件,阳性率为4.0﹪;发酵法超标2件,超标率为4.0﹪。两种方法检测结果相同,其符合率为100.0﹪。结论纸片法简便、易操作、省时、省力,极其适合基层监测工作。
Objective To analyze the positive coincidence rate of coliform bacteria method and lactose fermentation method to test coliform bacteria, and provide the basis for saving the financial resources, material resources and monitoring workers’ convenience of sampling and carrying. Method Paper method and fermentation method. Results There were 500 pieces of tableware detected by two different methods, of which 23 were positive by the paper method and the positive rate was 4.6%, 22 cases were excessive by fermentation method, and the exceeding standard rate was 4.4%. There was no significant difference by chi-square test (χ2 = 0.0232, P> 0.05). The coincidence rate of the two methods was 95.6%. 50 cold drinks and 2 positive samples by the paper method, the positive rate was 4.0%; the fermentation method exceeded 2 and the exceeding standard rate was 4.0%. The test results of the two methods are the same, with the coincidence rate of 100.0%. Conclusion The paper method is simple, easy to operate, time-saving, labor-saving and is extremely suitable for grass-roots monitoring.