EANET中的质量控制在酸雨监测中的运用

Application of The EANET Quality Control Methods in Acid Rain Monitoring

根据东亚酸沉降监测网络(EANET)的要求,除了一般性的平行、加标回收的质控方法外,应注意引入监测网络系统的准确性及样品分析的合理性判别。文章探讨了EANET中离子平衡分析和电导率比较质控方法在韶关市的降水监测工作中的应用。韶关市全年降雨样品电导率的理论计算值与测定值之比R2值为5.4%,符合参考标准,说明监测结果合理,监测结果整体性可信。R1值与参考标准相差6.7%且离子浓度随时间变化较大,说明降雨受当地地域性化学离子影响,对该地区的降雨还应作进一步的全面分析。

Besides the general paralleling sample and standard recovery quality control methods, we should introduce the EANET system＇s accuracy and sample analysis＇ rationality for estimating the acid rain monitoring should be introduced, according to the rules of EANET. The paper concerned on the application to the precipitation monitoring work of Shaoguan, used the ion balance analysis method and electric conductivity comparing quality control method, which expatiating in the EANET system. The ratio of the theory value and real calculating value R2 of Shaoguan＇s yearly precipitation sample was 5.4 %, which accords the reference standard, and that showed the monitoring result s rational and credible totally. Value R1 varied with the difference between the standard numerical values up to 6.7 %, and the difference of the ion concentration from reference standard enhanced with time passing, that showed the precipitation was effected by the local regionally chemical ion, so more all-round analysis of rainfall in this area was necded.