采用多毛细管气相色谱-微波诱导等离子体原子光谱检测法进行元素形态分析。

Elemental speciation analysis by multicapillary gas chromatography with microwave-induced plasma atomic spectrometric detection.

作者信息

Rodriguez Pereiro I, Schmitt V O, Lobiński R

机构信息

CNRS, URA 348, Université Bordeaux I, 351, Crs. de la Liberation, F-33 405 Talence, France.

出版信息

Anal Chem. 1997 Dec 1;69(23):4799-807. doi: 10.1021/ac970410e.

DOI:10.1021/ac970410e

PMID:21639152

Abstract

Multicapillary column gas chromatography (MC-GC)/microwave-induced plasma atomic emission spectrometry (MIP AES) was developed for fast speciation analysis of organotin compounds in the environment. Ethylated butyltin compounds could be separated isothermally within less than 30 s (instead of ∼5-10 min) without sacrificing either the resolution or the sample capacity of conventional capillary GC with oven temperature gradient programming. Careful optimization of the pressure and temperature GC program allowed a comprehensive organotin speciation analysis including phenyltin compounds within less than 2.5 min, increasing the sample throughput 6-fold. Compatibility of MC-GC with an MIP atomic emission detector (MIP-AED) was discussed. MC-GC/MIP-AES was validated for the analysis of sediment (PACS-1 and BCR 462) and biological (NIES11) certified reference materials.

摘要

多毛细管柱气相色谱法（MC-GC）/微波诱导等离子体原子发射光谱法（MIP AES）被开发用于环境中有机锡化合物的快速形态分析。乙基丁基锡化合物能够在不到30秒内实现等温分离（而非传统程序升温毛细管气相色谱法所需的约5 - 10分钟），且不会牺牲分辨率或样品容量。对压力和温度气相色谱程序进行仔细优化后，可在不到2.5分钟内对包括苯基锡化合物在内的有机锡进行全面形态分析，使样品通量提高了6倍。讨论了MC-GC与MIP原子发射检测器（MIP-AED）的兼容性。MC-GC/MIP-AES已针对沉积物（PACS-1和BCR 462）和生物（NIES11）认证参考物质的分析进行了验证。