摘要
该法标准油用表面活性剂乳化，整个测定均在水相进行，极大地简化了繁琐、低效的水样预处理步骤，提高了测定的准确度和工作效率，并节省测定成本。该法的线性范围０－１６μｇ／ｍｌ，标准偏差≤０．５０μｇ／ｍｌ，相对标准偏差≤３．４５％，加标回收率为９０％－１０４％。经水样测定并与常规方法对照，令人满意。
A method for the direct determination of oil content in refinery waste water by second-orderderivative ultraviolet spectrophotometry is proposed.Because the standard oil is emulsified by sur-factants,an overall determination is performed in the aquous phase,thus no extraction and pre-treatment procedures are needed.The linear range of calibration curve is 0-16μg·ml￣(-1),and thestandard deviation and the relative standard deviation are less than 0.50μg·ml￣(-1) and3.4%,re-spectively.The recovery of the standard oil is 90%-104%,therefore this method is very accurateand simple in comparison with the general extractive method.
出处
《石油化工》
EI
CAS
CSCD
北大核心
1995年第9期646-648,共3页
Petrochemical Technology
关键词
紫外分光光度法
含油量
炼油厂
废水监测
second-order derivative,spectrum ultraviolet spectrophotometry,refinery waste water,oil content,direct determination
