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出 处:《环境与健康杂志》2000年第4期233-233,241,共2页Journal of Environment and Health
摘 要:国标《游泳水中尿素卫生检验标准方法》采用二乙酰一肟法 ,该法反应产物不稳定 ,溶液显色后遇光褪色 ,必须使用棕色比色管 ,操作过程较繁琐。本法采用二乙酰一肟硫氨尿溶液 ,经与国标法对比 ,差异不显著 (t=1.0 75 <t0 .0 5 ,P>0 .0 5 ) ,且线性范围宽 ,反应时间短 ,灵敏度、精密度较好。Diacetyl monoxime was applied in National Sanitary Standard Method for detecting urea in swimming water,which presented some shortages as follows,unstable reacting products,easily faded colored solution by light,essential application of colorimetric cylinder and complicated operating procedure In this assay,the mixture except diacetyl monoxime thiosemicarbazide compound were added,the results revealed no significant differences compared with those data obtained according to National Standard Method ( t=1 075<t 0 05 ,P>0 05 ) This assay presented some advantages as follows,wide linear range,shorter reaction time,better sensitiveness and precision
分 类 号:R126.4[医药卫生—环境卫生学] X832.02[医药卫生—公共卫生与预防医学]
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