4-氨基安替比林萃取分光光度法测定水中挥发酚的质量控制指标研究

依据多种浓度、多种样品、多家实验室参与测定而得到的大量监测数据,研究分析了4-氨基安替比林萃取分光光度法测定水中挥发酚的质量控制指标.建议控制值为:当标准样品质量浓度范围为0.04 mg/L～0.2 mg/L时,室内相对标准偏差(RSD)≤5.0％；当标准样品质量浓度范围为0.04 mg/L～1.2 mg/L时,室间相...

Quality Control Index for Analysis of Volatile Phenolic Compounds by 4-AAP Spectrophotometry in Water

The laboratory quality control index was analyzed for volatile phenolic compounds determination by 4-aminoantipyrene spectrophotometry according to monitoring data obtained from several laboratories at different concentration levels and various samples.Suggestion was made for the control indax as fallows：RSD within laboratory≤5.0% at concentration levels of standard reference materials from 0.04 mg/L to 0.2 mg/L,RSD inter laboratories≤10% and RE≤±10% at concentration levels of standard reference materials from 0.04 mg/L to 1.2 mg/L,RD≤12% at concentration levels of samples from 0.001 mg/L to 0.1 mg/L,control range of spiked recoveries from 90% to 120%.