电阻抗法快速测定饮用纯净水中细菌和真菌总数的研究  

Study of Impedance Method for Rapid Detection of Total Counts of Bacterium and Fungus in Purified Drinking Water

作　　者：黄吉城[1] 赖蔚冬[1] 戴昌芳[1] 朱海明[1] 宋曼丹[1] 严纪文[1] 

机构地区：[1]广东省疾病预防控制中心,广州510300

出　　处：《中国卫生检验杂志》2001年第1期19-20,共2页Chinese Journal of Health Laboratory Technology

基　　金：广东省医学科学技术研究基金世川医学奖学金同学会科研启动基金

摘　　要：应用电阻抗法快速测定瓶装饮用纯净水中细菌和真菌总数，测定结果与现行的国标法比较，细菌和真菌指标的相符率分别为９４．７％和９０．４％，检测时间从４８ｈｒ和５ｄ分别缩短至１４．５ｂｒ和４４ｈｒ，而且样品污染越严重，检出时间就越短，细菌指标不合格时间为１１．３ｈｒ；真菌指标不合格时间为２７．１ｈｒ。因此，电阻抗法是一种快速有效的检测新技术。This study was conducted to compare current conventional method with the impedance method for rapid detection of total counts of bacterium and fungus in purified drinking water. The results indicated that the corresponding rate of two methods in index of bacterium and fungus was 94.7% and 90.4%, respectively.The detection time was shortened for 48br and 5days to 14.5hr and 44hr, respectively. Moreover, the more serious contaminated,the shorter time needed. The impedance method was able to predict a positive sample within 11 .3hr(baterium)and 27. 1hr(fungus). Therefore, impedance method was a rapid accurate detection method.

关 键 词：电阻抗法 饮用纯净水 细菌 真菌 数量 水质 

分 类 号：R123.1[医药卫生—环境卫生学]