摘要
本文阐述了利用红外分光光度法测定水中油类时遇到的常见问题,包括水样的采集和保存、空白值对测定的影响、酸度对测定的影响、MgSiO对测定的影响等。通过试验找到了解决问题的措施和控制方法,并对标准HJ 637—2018中认为空白试验结果应低于方法测定下限的说法进行修订,以供实验室分析人员参考和借鉴。
This paper describes the common problems in the determination of oil in water by Infrared spectrometry,including the collection and preservation of water samples,the influence of blank value on the determination,the influence of acidity on the determination and the influence of MgSiOon the determination. The measures and control methods to solve the problem were found through experiments,and the statement in standard HJ 637—2018 that the result of blank test should be lower than the lower limit of method determination was revised. The laboratory analyst may carry on the reference and the use for reference.
作者
赵荣龙
陈俊华
伊杰
杨玉娟
ZHAO Rong-long;CHEN Jun-hua;YI Jie;YANG Yu-juan(Kunming Dianchi Water Environmental Monitoring Co.,Ltd.,Kunming 650200,China;Southwest Copper Branch of Yunnan Copper Co.,Ltd.,Knming 650102,China)
关键词
红外分光光度法
水
检测
油类
infrared spectrophotometry
water
test
oils
