提出一种采用电解银电极降低海水中大量Cl 的浓度的前处理法 ,以便海水中微量的Br ,NO3 以及SO4 2 可以采用快速、灵敏的离子色谱法检测 .该前处理方法简单 ,快速 ,所测量的离子回收率均在 95%以上
The method of pretreatment to determine trace amounts of Br ,NO 3 and SO 4 2 in sea water by ion chromatography was proposed, by which the electrolysing argentine electrode was used to minimize the disturbance of Cl -. The results indicate that the method is simple, convenient, quick and efficient with recovery rates over 95 percent.
[1] HisaakiItoh ,Shinboyi.Determinationofanionsinseawaterbyionchromatography[J].BunsekiKagaku ,1980 ,2 0
[4 ]:2 39～ 2 4 2
[2 ] Moushifen ,Liukailu .IonChromatography[M ].Beijing :SciencePress,1986:2 36～ 2 37
[3] WZhu ,SACao ,MFominaga ,etal.Directdeterminationofbromideionsinseawaterbyionchromato graphyusingwaterasthemobilephase[J].AnalyticachimicaAGta .1996,32 2 ( 1) :1～ 2
[4 ] Chenguozhen .TheChemistryofSeaAnalysis[M].Beijing :SciencePress ,1965,1:4
[5] Chenguozhen .Analysisoftraceelementinseawater[M ].Beijing :OceanPress ,1990
[6] JohnA .Dean .AnalyticalChemistryHandbook[M ].McGraw HillBookCo .1995,14.4～ 14.16.
