摘要
采用国家最新发布的红外法测量长江南京段水中的油类,各采样点均有检出。讨论了新标准方法和旧标准方法中萃取除水方式的不同,测量方法的检出限为0.004 mg/L,精密度RSD<5%,样品加标回收率为79%～102%,均符合质量控制要求。
The paper used the newest standard method,infrared spectrophotometry,to determine oils in the Nanjing part of Yangtze River.Oils were detected in each sampling point.Compared with the old standard method,the way of dehydration during extraction was discussed.the detection limit of new method was 0.004 mg/L,the precision was less than 5 % and the sample recovery rate ranged from 79 % to 102 %.All these met the requirements of quality control.
出处
《广东化工》
CAS
2013年第9期158-159,共2页
Guangdong Chemical Industry
关键词
红外分光光度法
水中油类
长江
infrared spectrophotometry
oils in water
Yangtze river
