论文部分内容阅读
目的比较多管发酵法和滤膜法在检测生活饮用水中总大肠菌群时的优缺点。方法本实验参考国标《生活饮用水标准检验方法》(GB/T 5750.12-2006)的检测方法,分别用多管发酵法和滤膜法对103份生活饮用水水样中的总大肠菌群进行检验。并根据国标《生活饮用水卫生标准》(GB 5749-2006)对结果进行分析比较。结果在103份生活饮用水水样中,用多管发酵法和滤膜法检测合格的水样数分别为99份和98份,合格率分别为96.12%和95.15%,差异无统计学意义(χ~2=0.116,P>0.05)。结论两种检验方法对于生活饮用水中总大肠菌群的检验具有一致性,但因其适用范围不同,应根据实际情况选用。
Objective To compare the advantages and disadvantages of multi-tube fermentation and membrane filtration in the detection of total coliforms in drinking water. Methods The test reference to the national standard “drinking water standard test method” (GB / T 5750.12-2006) detection methods, respectively, by multi-tube fermentation and membrane filtration of 103 samples of drinking water in the total coliform test. According to the national standard “drinking water health standards” (GB 5749-2006) the results were analyzed and compared. Results In 103 samples of drinking water, the number of qualified water samples detected by multi-tube fermentation and membrane filtration were 99 and 98 respectively, with the pass rates of 96.12% and 95.15% respectively, with no significant difference ( χ ~ 2 = 0.116, P> 0.05). Conclusion The two test methods for the test of total coliform bacteria in drinking water are consistent, but because of their different scope of application, should be selected according to the actual situation.