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| 分光光度法测定水中六价铬的质量控制指标研究 | |
| 引用本文： | 夏新,马芳,康长安,彭刚华,李桂玲,武云霞,多克辛,申进朝.分光光度法测定水中六价铬的质量控制指标研究[J].环境监控与预警,2011,3(6):12-15. |
| 作者姓名： | 夏新 马芳 康长安 彭刚华 李桂玲 武云霞 多克辛 申进朝 |
| 作者单位： | 1. 中国环境监测总站,北京,100012 2. 北京科技大学,北京,100083 3. 江西省环境监测中心,江西南昌,330029 4. 南昌市环境监测站,江西南昌,330029 5. 河南省环境监测中心站,河南郑州,450004 |
| 基金项目： | 环保公益性行业科研专项项目（200809140） |
| 摘 要： | 通过国内多家实验室测定的大量数据,研究了分光光度法测定水中六价铬的质量控制指标,旨在为环境监测工作提供质量控制指标和依据.研究表明:样品质量浓度在0.04 ～0.5 mg/L范围内,标准样品室内相对标准偏差(RSD)≤4％,室间相对标准偏差(RSD′)≤15％,相对误差(RE)≤±10％(低浓度可适当放宽).实际样品质... |
| 关 键 词： | 六价铬 分光光度法 质量控制指标 |
| 收稿时间： | 1/4/2011 12:00:00 AM |
| 修稿时间： | 2011/1/21 0:00:00 |
The Quality Control Index of the Spectrophotometric Method for the Analysis of Hexavalent Chromium in Water |
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| XIA Xin , MA Fang , KANG Chang-an , LI Gui-ling , WU Yun-xia , DUO Ke-xin , SHEN Jin-chao , PENG Gang-hua.The Quality Control Index of the Spectrophotometric Method for the Analysis of Hexavalent Chromium in Water[J].Environmental Monitoring and Forewarning,2011,3(6):12-15. | |
| Authors: | XIA Xin MA Fang KANG Chang-an LI Gui-ling WU Yun-xia DUO Ke-xin SHEN Jin-chao PENG Gang-hua |
| Institution: | 1. The China National Environmental Monitoring Station, Beijing 100012, China; 2. Beijing Science and Technology University, Beijing 100083, China; 3. Jiangxi Provincial Environmental Monitoring Center, Nan- chang, Jiangxi 330029, China; 4. Nanchang Environmental Monitoring Station, Nanchang, Jiangxi 330029, China; 5. Henan Provincial Environmental Monitoring Central Station, Zhengzhou, Henan 210036, China) |
| Abstract: | On the basis of a large number of monitoring data from many national laboratories , the quality control index of the Cr （ VI ） were studied. The purpose was to provide QC index for environmental monitoring. This Study showed that the RSD （within-laboratory relative standard deviation） was less than 4.0% ; RSD＇（inter-laboratory relative standard deviation） was less than 15% ; and the relative error was controlled within ± 10% （ low concentrations could be appropriately larger） when the concentration was between 0.04 mg/L and 0.5 mg/L. Relative deviation of actual samples whose concentrations were between 0. 004 mg/L and 0.8 mg/L was controlled within 10%. The corresponding recovery of the blank sample ranged from 80% to 95% , while the corresponding recovery of the standard samples and the actual samples ranged from 80% to 115%. |
| Keywords: | chromium（ VI ） spectrophotometric method quality control index |
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