CAJ | 학술논문

利用阳极溶出伏安法实现水体中砷含量的现场快速分析。方法检出限为0.007 mg／L，测定范围为0.03 mg／L～0.14 mg／L。该法可由单标法测定和标准添加法测定。采用单标测定，对国家标准物质的分析误差在20％以内，加标回收率在94.0％～126.2％之间；采用标添测定，对国家标准物质的分析误差在5％以内，加标回收率在93.5％～104.8％之间。对浓度为0.01、0.02、0.05、0.10 mg／L的统一样品进行测定， RSD在7.0％～18.7％之间。特别是浓度在0.05 mg／L以上时，RSD在10％以内，完全满足应急状态下As项目Ⅲ类水分析要求。完全满足应急状态下现场分析的要求。
이용양겁용출복안법실현수체중신함량적현장쾌속분석。방법검출한위0.007 mg／L，측정범위위0.03 mg／L～0.14 mg／L。해법가유단표법측정화표준첨가법측정。채용단표측정，대국가표준물질적분석오차재20％이내，가표회수솔재94.0％～126.2％지간；채용표첨측정，대국가표준물질적분석오차재5％이내，가표회수솔재93.5％～104.8％지간。대농도위0.01、0.02、0.05、0.10 mg／L적통일양품진행측정， RSD재7.0％～18.7％지간。특별시농도재0.05 mg／L이상시，RSD재10％이내，완전만족응급상태하As항목Ⅲ류수분석요구。완전만족응급상태하현장분석적요구。
An In-situ fast analysis of Arsenic in water was performed by anodic stripping voltammetry .The method proposed has low detection limit of 0.007 mg/L and wide detection window between 0.03 mg/L and 0.14 mg/L.For the national standard product, the analytical error can be controlled within 20% and the recovery rate of standard addition only varies from 94.0% to 126.2% by using simple standard determination method .Meanwhile the analytical error was controlled within 5% and the recov-ery rate of standard addition was changed from 93.5% to 104.8% by using standard addition method.The samples with concen-tration of 0.01, 0.02, 0.05, 0.10 mg/L were tested, the RSD is between 7.0% ~18.7%.When the concentration is above 0.05 mg/L, RSD is less than 10%.It is proved that the method could satisfy the needs of in -situ analysis for emergency state.