2023年1月云南化工Jan.2023第50卷第1期YunnanChemicalTechnologyVol.50,No.1doi:10.3969/j.issn.1004-275X.2023.01.18流动注射分析法测定昆明学院院洋浦校区地表水中总磷含量*王颖臻**,葛丹丹,张毅,杨艳华(昆明学院化学化工学院,云南昆明650214)摘要:地表水中总磷含量是水质评价中的重要指标之一。应用流动注射分析法测定昆明学院洋浦校区地表水中的总磷含量。该方法在总磷质量浓度0.050~1.60mg/L范围与峰高响应值呈良好线性关系(r=0.9993),检出限为0.007mg/L,用于测定水样中总磷含量,相对标准偏差在0.27%~3.61%之间,加标回收率97%~117%。实验结果与“GB11893-89钼酸铵分光光度法”比较,无显著差异,简便、快速、准确,可用于批量样品分析。关键词:流动注射分析法;总磷含量;地表水中图分类号:O661.1文献标识码:A文章编号:1004-275X(2023)01-0065-03DeterminationofTotalPhosphorusContentinSurfaceWaterofYangpuCampusKunmingUniversitybyFlowInjectionAnalysis*WangYingzhen**,GeDandan,ZhangYi,YangYanhua(CollegeofChemistryandChemicalEngineering,KunmingUniversity,Kunming650214,China)Abstract:Totalphosphoruscontentinsurfacewaterisoneoftheimportantindicatorsofwaterqualityevaluation.TheflowinjectionanalyzerwasusedforthedeterminationoftotalphosphorusinsurfacewaterofYangpuCampusofKunmingUniversity.LinearrelationshipbetweenvaluesofPeakheightandmassconcentrationoftotalphosphoruswasobtained0.050-1.60mg/L(r=0.9993),withvaluesoflimitof0.007mg/L.Thisproposedmethodwassuppliedtothedeterminationoftotalphosphorusinwatersampleswithrelativestandarddeviationintherangeof0.27%~3.61%.Therecoverrateofstandardofadditionis97%~117%.ComparedwithmethodofammoniummolybdatespectrophotographyinGB11893-89,theresulthadnotsignificantdifference.Testresultshowsthatthemethodissimple,fastaccurateandapplicabletodetermineto-talphosphorusinwater.Itissuitableforlargescalesampleanalysis.Keywords:flowInjectionanalysis;totalphosphoruscontent;surfacewater天然水中所含磷大部分以各种磷酸盐形式存在,分为正磷酸盐、缩合磷酸盐(焦磷酸盐、偏磷酸盐、多磷酸盐)和有机结合磷(如磷脂等),它们存在于各种水体、腐殖质粒子或水生生物中[1]。水体中适量的...