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建立了固相萃取(SPE)-红外分光光度测定水中总油的方法,并对固相萃取条件进行了优化,实验表明,对于1L添加2mg标准油的水样,其总油的回收率为86%-93%,多次重复实验测定的相对标准偏差为2.9%(n=6)。
A method for the determination of total oil in water by solid-phase extraction (SPE) and infrared spectrophotometry was established. The conditions of solid-phase extraction were optimized. The experimental results showed that the total oil recovery was 86% for 1L water sample with 2mg standard oil % -93%. The relative standard deviation (RSD) of multiple replicate experiments was 2.9% (n = 6).