淡水水体中含细菌水样保存时间研究  

Study on Preservation Time of Water Samples Containing Bacteria in Fresh Water

作　　者：姜永伟 JIANG Yong-wei(Liaoning Eco-environmental Monitoring Center,Shenyang Liaoning 120031)

机构地区：[1]辽宁省生态环境监测中心,辽宁沈阳120031

出　　处：《现代农业科技》2020年第15期182-183,共2页Modern Agricultural Science and Technology

摘　　要：本文研究了国内外标准对含细菌水样保存时间的规定,4℃和10℃条件下开展了低、中、高3个浓度水样连续24 h条件试验。结果表明,4℃和10℃条件下,24 h内测定细菌总数的结果在统计学意义上无显著性差异;4℃条件下,24 h内中浓度水样细菌总数计数结果在统计学意义上无显著性差异;低浓度和高浓度水样有显著性差异。建议水样的保存时间不宜超过6 h。The domestic and international standards for the preservation time of water samples containing bacteria were studied.The 24 h continuous condition test of water samples with low,medium and high concentrations were carried out at 4 ℃ and 10 ℃.The results showed that there was no significant difference in the total bacteria in 24 hours between 4 ℃ and 10 ℃.At 4 ℃,there was no significant difference in the total bacteria in the medium concentration samples within 24 hours,but there were significant differences between low concentration and high concentration samples.It is suggested that the preservation time of water sample should not exceed 6 hours.

关 键 词：含细菌水样 保存时间 条件试验 淡水水体 

分 类 号：X832[环境科学与工程—环境工程]