Ion chromatography was an important tool for the determination of organic and inorganic ions. It was widely used for analyzing food samples. However, the conventional sample pretreatments were always time-consuming, costly and complex. To date, many techniques were developed to eliminate the matrix and enrich the trace analytes in food samples. The applications of novel sample pretreatment techniques in ion chromatography were reviewed in this paper. The sample extraction, clean-up procedures and enrichments in food samples were described respectively. The extraction methods included the accelerated solvent extraction and microwave-assisted extraction; the clean-up methods included membrane techniques (on-line ultrafiltration and on-line dialysis) and solid phase extractions (reverse phase materials, ion exchange resins, chelate resins and carbon materials); the enrichment methods included microwave preconcentration and column switching technique.
标题：样品前处理-离子色谱法应用于食品分析的 研究进展
英文标题：Recent applications of sample pretreatment techniques in food analysis by ion chromatography
