CAJ | 학술논문

通过对全国多家实验室的大量监测数据的研究对比,分析了LAS测定的质量控制指标,并与GB/T7494-1987和ISO7875-1-1996进行了比较,旨在为环境监测工作提供质量控制依据。研究表明：标准样品（0.30～1.35mg/L）RSD的控制范围≤5.0%,实际样品RD控制范围≤12.0%（0.05～0.30mg/L）;≤5.0%（0.30～7.4mg/L）。实验室间标准偏差为0.003～0.014mg/L,RSD′可根据浓度水平和数据质量目标在5.0%～12.0%之间进行选择;相对误差≤±6.0%;加标回收率范围为90%～110%。
통과대전국다가실험실적대량감측수거적연구대비,분석료LAS측정적질량공제지표,병여GB/T7494-1987화ISO7875-1-1996진행료비교,지재위배경감측공작제공질량공제의거。연구표명：표준양품（0.30～1.35mg/L）RSD적공제범위≤5.0%,실제양품RD공제범위≤12.0%（0.05～0.30mg/L）;≤5.0%（0.30～7.4mg/L）。실험실간표준편차위0.003～0.014mg/L,RSD′가근거농도수평화수거질량목표재5.0%～12.0%지간진행선택;상대오차≤±6.0%;가표회수솔범위위90%～110%。
On the basis of a large number of monitoring data from many laboratories nationwidely, we analyzed the quality control index of the LAS, and compared with the QC index in GB/T7494-1987 and ISO 7875-1-1996. Studies indicate that the within-laboratory relative standard deviation（0.30～1.35 mg/L）control limit of standard samples was less than 5.0%, that of actual samples was less than 12.0%（0.05～0.30 mg/L）、that of actual samples was less than 5.0%（0.30～7.4 mg/L）. The betweenlaboratory standard deviation control limit ranges beween O. O03and 0. 014 mg/L, RSD＇can be ranged beween 5.0% and 12.0% according to the concentration and the data qulity objectives. The relative error of the standard samples was less than±7. 0%. The correspounding recovery rates was less than 90% ～110%.