食品安全元素形态分析联用技术的应用

摘要

Elements are closely related to food safety,and their bioavailability or toxicity is not simply depended on the total contents,but mainly on their chemical forms.Elements speciation analysis of food plays an important role in food safety control and nutritional evaluation.Hyphenated techniques combining with the advantages of two or more techniques have become the most important speciation analysis methods employed.Based on the recent reported element speciation analysis techniques,the present work overviews the applications of ion chromatography (IC),gas chromatography (GC)and high performance liquid chromatography (HPLC)hyphenated with inductively coupled plasma mass spectrometry (ICP-MS)in speciation analysis of arsenic,mercury,tin,selenium,chromium and bro-mine in food.%元素与食品安全密切相关，元素的生物有效性或毒性并不是简单的与元素总量有关，主要取决于元素存在的化学形态。食品中元素的形态分析对食品安全控制与营养评价具有非常重要的作用。联用技术融合了2种或2种以上分析技术的优点，是目前最重要的形态分析方法。依据近年来有关元素形态分析技术应用于食品检测的研究报道，分别介绍离子色谱（IC ）、气相色谱（GC ）和高效液相色谱（HPLC）与电感耦合等离子体质谱（ICP-MS）联用技术在食品中砷、汞、锡、硒、铬和溴形态分析中的应用。