| 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 |
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| 引用本文： | 彭学军,张叶栩,江祖成,曾云鹗.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[J].高等学校化学学报,1993,14(9):1218. |
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| 作者姓名： | 彭学军 张叶栩 江祖成 曾云鹗 |
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| 作者单位： | 武汉大学化学系, 武汉 430072 |
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| 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.
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| 关 键 词： | 流动注射 ICP-AES meso-四(4-氨基苯基)卟啉 碳硅凝胶 |
| 收稿时间： | 1992-12-14 |
On-Line Column Preconcentration and Determination of Trace Elements with T(4-TAP)P as the Derivation Agent by Flow Injection ICP-AES |
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| PENG Xue-Jun,ZHANG Ye-Xu,JIANG Zu-Cheng ZENG Yun-E.On-Line Column Preconcentration and Determination of Trace Elements with T(4-TAP)P as the Derivation Agent by Flow Injection ICP-AES[J].Chemical Research In Chinese Universities,1993,14(9):1218. |
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| Authors: | PENG Xue-Jun ZHANG Ye-Xu JIANG Zu-Cheng ZENG Yun-E |
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| Institution: | Department of Chemistry, Wuhan University, Wuhan, 430072 |
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| Abstract: | Meso-tetrakis(4-aminophenyl)porphyrinT(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. |
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| Keywords: | Flow injection ICP-AES Meso-tetrakis(4-aminophenyl)porphyrin Active carbon-silica gel |
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