石油类测定质量自控方法探讨  

Discussion on Quality Self-control Method for Petroleum Determination

作　　者：鱼军[1] 姚坚[1] 

机构地区：[1]苏州高新区环境保护局,江苏苏州215000

出　　处：《环境监测管理与技术》2012年第4期56-57,共2页The Administration and Technique of Environmental Monitoring

摘　　要：探讨了水中石油类测定中自控标准样品的配制方法,按1∶1∶1的比例配制正十六烷、姥鲛烷和甲苯混合标准溶液,对国家标准样品的测定值在保证值范围内。配制的20.0 mg/L和1.00 mg/L高、低两种质量浓度的混合标准溶液,连续7 d随水样同时测定的相对误差≤7.0%,RSD在1.3%～6.7%范围。A method for self-control standard sample was discussed to determine petroleum in water. The petroleum standard solution was made from hexadecane, pristine and toluene （ 1 ： 1 ： 1 ）. The obtained result agreed with the certified value when the standard solution was used to determine national standard samples. Two mixed samples prepared by the petroleum standard solution, which concentrations were 20. 0 mg/L and 1.00 mg/L separately, were determined for seven consecutive days with water samples to show that relative error of test values ≤7.0% and RSD ranged form 1.3% to 6.7%.

关 键 词：石油类 红外分光光度法 自控标准样品 水质 

分 类 号：O657.33[理学—分析化学]