摘要
在Ｈ２ＳＯ４－Ｈ２Ｃ２Ｏ４介质中，用单扫描示波极谱法，Ｓｎ（ＩＶ）－ＤＰＧ体系可产生灵敏的络合吸附波。锡浓度在８～４００μｇ／ｌ范围内与峰高呈线性关系，检测限为２μｇ／ｌ，并用于硬聚氯乙烯饮用水管材和管件锡及水中微量锡的测定，结果满意，回收率在８９～１０３％，相对标准偏差ＲＳＤ％为０．５２％～５．６０％之间。
In H 2SO 4-H 2C 2O 4 medium, a sensitive absorption complex wave Sn(IV)-DPG could be obtained by single sweep oscillopolarography. The peak current was linearly related to the concentrations of tin in the range from 8～400μg/l Sn. The detection limit is 2μg/l. The proposed method was appliedto determine microamount of tin in unplasticized polyvinyl chloride (PVC_U)pipes and fittings for drinking water supply and natural water with satisfactory results. The recouery found is between 89～103%. The RSD% is between 0.52～5 60%
出处
《预防医学情报杂志》
CAS
1999年第1期1-2,共2页
Journal of Preventive Medicine Information
