干旱环境监测
榦旱環境鑑測
간한배경감측
ARID ENVIRONMENTAL MONITORING
2011年
4期
209-212
,共4页
流动注射%总氮%特性
流動註射%總氮%特性
류동주사%총담%특성
Flow injection%total nitrogen%feature
运用AA3连续流动注射分析仪测定水中总氮,测试了仪器的示值误差、重复性、稳定性等相关特性指标,由检测数据可以得出该方法线性关系好,精密度和准确度高,检出限低,加标回收率为93%-104%,与传统的碱性过硫酸钾消解—紫外分光光度法相比,该方法具有分析速率快、试剂消耗量低等优点,适用于环境监测分析工作。
運用AA3連續流動註射分析儀測定水中總氮,測試瞭儀器的示值誤差、重複性、穩定性等相關特性指標,由檢測數據可以得齣該方法線性關繫好,精密度和準確度高,檢齣限低,加標迴收率為93%-104%,與傳統的堿性過硫痠鉀消解—紫外分光光度法相比,該方法具有分析速率快、試劑消耗量低等優點,適用于環境鑑測分析工作。
운용AA3련속류동주사분석의측정수중총담,측시료의기적시치오차、중복성、은정성등상관특성지표,유검측수거가이득출해방법선성관계호,정밀도화준학도고,검출한저,가표회수솔위93%-104%,여전통적감성과류산갑소해—자외분광광도법상비,해방법구유분석속솔쾌、시제소모량저등우점,괄용우배경감측분석공작。
Applied AA3 Flow Injection Analyzer to determine total nitrogen in water.the feature index including the indication error,repeatability,stability of instrument were tested.The detected data showed that the method had better linear relationship,high precision and accuracy,low detection limit.The recovery of this method was 93%~104%.Compared with determination of total nitrogen-Alakaline potassium persulfate digestion-UV spectrophotometric method,this method had some advantages such as rapid detection,low reagents consume.It could be better application for environmental monitoring analysis.
