１，１０－邻二氮菲褪色—Ｆｅ２＋ 量差减—分光光度法测定水中溴酸根

辽宁石油化工大学学报 ›› 2012, Vol. 32 ›› Issue (2): 27-31.

１，１０－邻二氮菲褪色—Ｆｅ^２＋量差减—分光光度法测定水中溴酸根

李秀萍^１，赵荣祥^２，李丹东^２

１．辽宁石油化工大学化学与材料科学学院，辽宁抚顺１１３００１；
２．辽宁石油化工大学石油化工学院，辽宁抚顺１１３００１

收稿日期:2011-12-27 出版日期:2012-06-25 发布日期:2017-07-06
作者简介:李秀萍（１９７５－），女，辽宁康平县，讲师，在读博士

Determination of the Bromate in Water Based on 1,10-Phenanthroline Fade—Subtracted the Amount of Fe2+— Spectrophotometry

LI Xiu-ping¹， ZHAO Rong-xiang²， LI Dan-dong²

1.School of Chemistry and Material Science，Liaoning Shihua University，Fushun Liaoning 113001，P.R.China；  2.School of Petrochemical Engineering，Liaoning Shihua University，Fushun Liaoning 113001，P.R.China

Received:2011-12-27 Published:2012-06-25 Online:2017-07-06

摘要/Abstract

摘要： 以１，１０－邻二氮菲为Ｆｅ^２＋的显色剂，采用分光光度法测定Ｆｅ^２＋的质量浓度，通过水中溴酸盐的氧化性将Ｆｅ^２＋氧化为Ｆｅ^３＋，使１，１０－邻二氮菲褪色，间接测定水中溴酸盐的质量浓度。对线性范围、检出限、加标回收率以及１，１０－邻二氮菲与Ｆｅ^２＋的显色条件进行了考察。结果表明：样品的加标回收率为９２．５％～１０８．７％，检出限为１２～３６ｎｇ／Ｌ，精密度为０．３１２％。

关键词: Ｆｅ^２＋量差减 , 　溴酸根 , 　分光光度法

Abstract: The weight percentage of Fe2+ can be determined with 1,10-phenanthroline as chromogenic agent, and Fe2+ would be oxidized by bromate to Fe3+ and then 1,10-phenanthroline faded. Therefore, the content of bromate in water can be indirectly determined according to the stoichiometry amount of Fe2+. The linear range, detection limit, recovery, chromogenic conditions were studied and found that the recovery is 92.5%～108.7%, detection limit is 15～36 ng/L, the precision is less than 0.312.

Key words: 　Subtracted the amount of Fe2+ , Bromate , Spectrophotometry

李秀萍，赵荣祥，李丹东. １，１０－邻二氮菲褪色—Ｆｅ^２＋量差减—分光光度法测定水中溴酸根[J]. 辽宁石油化工大学学报, 2012, 32(2): 27-31.

LI Xiu-ping， ZHAO Rong-xiang， LI Dan-dong. Determination of the Bromate in Water Based on 1,10-Phenanthroline Fade—Subtracted the Amount of Fe2+— Spectrophotometry[J]. Journal of Liaoning Petrochemical University, 2012, 32(2): 27-31.

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