Flow-through analysis of Al in seawater by fluorometric detection with the use of lumogallion

Field Analytical Chemistry & Technology Pub Date : 2001-01-02 DOI:10.1002/1520-6521(2000)4:6<274::AID-FACT30>3.0.CO;2-U

Hajime Obata, Yoshiyuki Nozaki, Kei Okamura, Masahiro Maruo, Eiichiro Nakayama

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引用次数: 17

Abstract

A flow-through analytical method has been developed for the determination of trace amounts of aluminum in seawater with the use of Lumogallion fluorometric detection. Because iron was selectively removed by passing the sample through an 8-quinolinol immobilized chelating resin column (MAF-8HQ), this method could be applied to samples collected at the hydrothermal oceanic regime. Several known organic complexing agents were studied as a model group to examine the effect of naturally occurring organic ligands on the detection of aluminum in seawater. The detection limit was 0.17 nM for 10 ml of sample. The standard deviation was 2.7% at 2 nM of aluminum. This method permitted the sensitive, precise, and rapid determination of subnanomolar Al in seawater without contamination onboard ship. © 2000 John Wiley & Sons, Inc. Field Analyt Chem Technol 4: 274–282, 2000

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用荧光光度法测定海水中铝的流动

建立了用Lumogallion荧光检测法测定海水中微量铝的流动分析方法。由于铁是通过8-喹啉醇固定螯合树脂柱(MAF-8HQ)选择性去除的，因此该方法可以应用于热液海洋环境中收集的样品。以几种已知的有机络合剂为模型组，考察天然存在的有机配体对海水中铝检测的影响。对10 ml样品的检出限为0.17 nM。在铝的2 nM处，标准偏差为2.7%。该方法可以在不污染船舶的情况下，灵敏、准确、快速地测定海水中亚纳摩尔铝的含量。©2000 John Wiley &儿子,Inc。化学工程学报(自然科学版)，2003,19 (4):344 - 344

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Field Analytical Chemistry & Technology

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