顺序注射分析化学形态分析：综述

Chemical speciation by sequential injection analysis: an overview.

作者信息

van Staden J F, Stefan R I

机构信息

Department of Chemistry, University of Pretoria, Pretoria 0002, South Africa.

出版信息

Talanta. 2004 Dec 15;64(5):1109-13. doi: 10.1016/j.talanta.2004.05.042.

DOI:10.1016/j.talanta.2004.05.042

PMID:18969718

Abstract

The simplicity of the sequential injection (SIA) manifold and its low need for maintenance makes it an ideal tool in speciation. As miniaturization and reduction of reagent consumption are also ultimate goals in chemical sensing, it is useful to review the use of combined injection and programmed flow as a central issue in designing SIA systems with chemical sensors and structurally simplified chemical analysers. This overview gives an insight into the current state, analytical scope and performance characteristics of sequential injection systems as analytical tools for speciation. The suitability of SIA for speciation analysis is illustrated by the methods used in the conduits of sequential injection systems for the chemical conversion of different chemical forms into detectable chemical species. Configurations of the basic sequential injection speciation analysis systems were designed around a multi-syringe-time-based-injection system with one detector, direct and indirect speciation of different forms using a single detector including diode array detection and direct speciation of different forms using multiple detection. Examples showing the use of SIA for the simultaneous determination or speciation of metal ions, inorganic anions and organic compounds are given with some recent results from our research groups.

摘要

顺序注射（SIA）流路的简单性及其较低的维护需求使其成为形态分析中的理想工具。由于小型化和减少试剂消耗也是化学传感的最终目标，因此有必要回顾一下联合进样和程序流动作为设计带有化学传感器和结构简化化学分析仪的SIA系统的核心问题的应用。本综述深入探讨了顺序注射系统作为形态分析工具的当前状态、分析范围和性能特征。通过顺序注射系统管道中用于将不同化学形态转化为可检测化学物种的化学转化方法，说明了SIA在形态分析中的适用性。基本顺序注射形态分析系统的配置是围绕一个基于多注射器定时进样系统设计的，该系统配备一个检测器，使用单个检测器（包括二极管阵列检测）对不同形态进行直接和间接形态分析，以及使用多个检测对不同形态进行直接形态分析。给出了使用SIA同时测定或分析金属离子、无机阴离子和有机化合物的示例以及我们研究小组最近的一些结果。