化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2015年
2期
88-90
,共3页
硫化物%亚甲基蓝分光光度法%质量控制
硫化物%亞甲基藍分光光度法%質量控製
류화물%아갑기람분광광도법%질량공제
sulfide%methylene blue spectrophotometric method%quality control
依据亚甲基蓝分光光度法，对水质控样中硫化物含量进行了测定。实验结果表明该方法具有良好的线性，相关系数大于0.9990，样品平均添加回收率为94.0%～100.3%，测定结果的相对标准偏差为0.097%(n=6)。质控样中硫化物测量结果为0.320 mg／L，扩展不确定度为0.021 mg／L(k=2)。该测定结果与参考值一致，说明实验室检测能力处于受控状态。
依據亞甲基藍分光光度法，對水質控樣中硫化物含量進行瞭測定。實驗結果錶明該方法具有良好的線性，相關繫數大于0.9990，樣品平均添加迴收率為94.0%～100.3%，測定結果的相對標準偏差為0.097%(n=6)。質控樣中硫化物測量結果為0.320 mg／L，擴展不確定度為0.021 mg／L(k=2)。該測定結果與參攷值一緻，說明實驗室檢測能力處于受控狀態。
의거아갑기람분광광도법，대수질공양중류화물함량진행료측정。실험결과표명해방법구유량호적선성，상관계수대우0.9990，양품평균첨가회수솔위94.0%～100.3%，측정결과적상대표준편차위0.097%(n=6)。질공양중류화물측량결과위0.320 mg／L，확전불학정도위0.021 mg／L(k=2)。해측정결과여삼고치일치，설명실험실검측능력처우수공상태。
On the basis of methylene blue spectrophotometry, sulfide content in the water quality control samples was determined. Experimental results showed that the method had good linear relationship with correlation coefficient more than 0.999 0, the recovery was 94.0%–100.3%, and the relative standard deviation of determination results was 0.097%(n=6). The sulfide content in water quality control samples was 0.320 mg/L with the expanded uncertainty of 0.021 mg/L(k=2). The determination results was consistent with the reference value, this laboratory detection ability was under controlled.
