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当前位置: 首页 > 文章 > 方法检出限对水质量评价等级制约的研究 中国农学通报 2012,28 (8) 294-299
Position: Home > Articles > Restrictions to Environmental Water Evaluation Level from the Limit of Method Chinese Agricultural Science Bulletin 2012,28 (8) 294-299

方法检出限对水质量评价等级制约的研究

作  者：
赵阳;王磊;陈文;王湘君;符爱钦
单  位：
琼州学院生物科学与技术学院;琼州学院理工学院;新乡市环境保护监测站;白沙中学;开封市环境保护监测站
关键词：
原子吸收分光光度法;电感耦合等离子发射光谱法;检出限;污染等级
摘  要：
为了研究不同仪器、方法对同一水样检测的结果是否有明显差异,是否得到不同的评价参数,选取河南省新乡市地表水和地下水各3个样本,分别用原子吸收分光光度法(AAS法)和电感耦合等离子发射光谱法(ICP-OES法)检测同一样本中6种金属元素的浓度,并进行检测的差异性分析;评价其水质等级。结果表明,所获得的36对检测结果数据均有明显差异,其中14个指标的污染等级不同。仪器与方法检出限较高,导致所得监测结果受检出限限制,不是真实、准确测得的结果,而是取检出限的一半的值得出,影响了环境质量评价结果的准确、真实程度,影响环境管理措施的制定和实施,应当选择检出限低于最高评价等级数值的仪器和方法。
译  名：
Restrictions to Environmental Water Evaluation Level from the Limit of Method
作  者：
Zhao Yang 1,Wang Lei 2,Chen Wen 3,Wang Xiangjun 4,Fu Aiqin 5(1 Environmental Protection Monitoring Center in Xinxiang,Xinxiang Henan 453002;2 Environmental Protection Monitoring Center in Kaifeng,Kaifeng Henan 475000;3 Technical College,Qiongzhou University,Sanya Hainan 572000;4 Biological Science and Technology College,Qiongzhou University,Wuzhishan Hainan 572200;5 Baisha High School,Baisha Hainan 572800)
关键词：
AAS;ICP;detection limit;pollution level
摘  要：
In order to display the results and evaluate parameters were significantly different,the same samples detected by different instruments and methods,the surface water and groundwater in all 3 samples in Xinxiang City of Henan Province were chosen,in which 6 kinds of metal elements concentration were detected by the methods of atomic absorption spectrophotometry(AAS) and inductively coupled plasma optical emission spectrometry(ICP-OES),and differences in detection were analyzed;the water quality grade was evaluated.The results showed that all the 36 groups detection data had obviously differences,in which 14 indexes of pollution level were different.Detection limit of apparatus and methods were higher,which resulted to the detection results restricted by the limit,and they were not the true and accurate measurement results,but from half of the detection limit value,the truth and accuracy of the environmental quality evaluation results were affected,the formulation and implementation of the environmental management measures were also influenced.It was better to choose the methods and apparatus of which detection limits were below the highest evaluation level.

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