基于连续流动分析仪测定海水中挥发酚的方法研究

Study and analyze on volatile phenols in seawater with continuous flow analyzer

为优化海水中挥发酚的检测工作,也为今后本方法的标准化提供科学依据,并为检测机构的科技人员测定海水中挥发酚的工作提供参考,研究采用SKALAR San++型连续流动分析仪在线测定海水中的挥发酚。实验结果表明:在0~0.100 mg/L线性区间内,该方法具有较高的精密度和准确度,其最低检出限为0.002 mg/L;采用该方法和经典方法同时测定4个样品,测定结果相对标准偏差为2.21%~4.65%,均小于5%,表明两种方法结果无显著性差异。研究表明该方法快捷、简便和绿色环保,值得进一步研究、推广和应用。

; The detection of volatile phenol in sea water was optimized by continuous flow analyzer method. The results of this study could provide scientific basis for the determination of volatile phenol in sea water for scientific and technical personnel of testing agencies, and provide a scientific basis for the standardization of this method. The experimental results showed that this method had high precision and accuracy in the linear range of 0 ？100 mg/L,the minimum detection limit was 0. 002 mg/L. The range of relative standard devia-tion was 2. 21 % - 4. 65%,which were all less than 5 % （ standard requirement）. There was no significant difference between continuous flow analysis method and classical method. The method was fast, simple and environmental protection, and it would be worth to further study and application.