高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (9): 1218.

• 研究论文 • 上一篇    下一篇

T(4-TAP)P柱内衍生流动注射在线预富集ICP-AES及其在痕量分析中的应用

彭学军, 张叶栩, 江祖成, 曾云鹗   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1992-12-14 修回日期:1993-04-03 出版日期:1993-09-24 发布日期:1993-09-24
  • 通讯作者: 江祖成
  • 作者简介:第一作者:男, 28岁, 博士后, 现在厦门大学.

On-Line Column Preconcentration and Determination of Trace Elements with T(4-TAP)P as the Derivation Agent by Flow Injection ICP-AES

PENG Xue-Jun, ZHANG Ye-Xu, JIANG Zu-Cheng, ZENG Yun-E   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1992-12-14 Revised:1993-04-03 Online:1993-09-24 Published:1993-09-24

PDF (PC)

被引次数

12

摘要： 首次以meso-四(4-氨基苯基)卟啉为衍生化试剂,使其负载于碳硅凝胶填充材料上,在优化的实验条件下,于pH9.24的NH3·H20/NH4Cl缓冲介质中实现金属离子Cu2+、Mn2+、Pb2+、Fe2+、Cd2+、Ni2+的在线富集分离和ICP-AES测定.考察了影响在线预富集的各种因素,富集倍数可达6～57.8倍.检出限为ng/mL级,分析速率为6次/h.此法用于生物试样分析,结果满意.

关键词: 流动注射, ICP-AES, meso-四(4-氨基苯基)卟啉, 碳硅凝胶

Abstract: Meso-tetrakis(4-aminophenyl)porphyrin[T(4-TAP)P] used as a suitable chelating reagent was loaded on the mixture of active carbon-silica gel.Experimental parameters such as carrier flow-rate, sampling volume and eluent acidity were optimized.In the buffer solution of NH3 · H2O-NH4C1 at pH9.24, Cu2+, Mn2+, Pb2+, Fe2+, Cd2+, Ni2+ could be preconcen-trated.and then determined by ICP-AES.Its enrichment factors were 6-57.8 with the detection limits of ng/mLlevel, the sampling frequency was 6 times/h.The method has been applied to the analysis of NBSstandard sample of pig kidney with satisfactory results.

Key words: Flow injection, ICP-AES, Meso-tetrakis(4-aminophenyl)porphyrin, Active carbon-silica gel

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