| 低浓度六价铬样品回收率测定中加标量问题的探讨 |
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| 引用本文： | 刘瑞芹,贾立军,罗爱民.低浓度六价铬样品回收率测定中加标量问题的探讨[J].承德石油高等专科学校学报,2001,3(3):18-20. |
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| 作者姓名： | 刘瑞芹 贾立军 罗爱民 |
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| 作者单位： | 承德市环境监测站, |
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| 摘 要： | 通过对大量低浓度环境样品六价铬的加标回收率测定表明：加标量控制在方法测定下限的4倍时，加标回收率样品能达到100％合格，加标量在测定下限的3倍时，合格率可达85．7％，如果加标量过低，则很难达到合格要求。
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| 关 键 词： | 低浓度六价铬 环境样品 加标回收率 测定 加标量 |
| 文章编号： | 1008-9446(2000)03-0018-03 |
| 修稿时间： | 2001年6月8日 |
Discussion on Adding standard Matter Amount in Determination for Recovery Rate of Low Concentration Cr6+ Specimen |
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| LIU Rui qin,JIA Li Jun,LUO Ai min.Discussion on Adding standard Matter Amount in Determination for Recovery Rate of Low Concentration Cr6+ Specimen[J].Journal of Chengde Petroleum College,2001,3(3):18-20. |
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| Authors: | LIU Rui qin JIA Li Jun LUO Ai min |
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| Abstract: | With a lot of determination results of the adding standard matter recovery rate of low concentration Cr +6 Specimen,this paper concludes that,the recovery rate can be up to 100% when the adding standard matter amount is controlled at 4 times as the lower limit of methodological determination,and it could reach 85.7% at 3 times.If the amount is too low,it is very hard to achieve the usual limits of the rate stated. |
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| Keywords: | low concentration Cr 6+ Specimen the adding standard matter recovery the adding standard matter amount |
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