等离子发射光谱测定蔬菜矿质元素前处理方法研究

以黄瓜、大白菜、辣椒、萝卜和菜豆5种蔬菜为试材，对应用等离子发射光谱仪（ICP）测定矿质元素前处理中涉及到的关键因素进行了研究，包括酸介质的选择、标准曲线绘制方法、消化方法、不同样品状态消化等方面。结果表明，由于蔬菜具有新鲜多汁的特性，不同的前处理方法对测定结果有一定的差异。所以要根据样品的不同性状来选择适合的前处理方法，最后获得准确的试验数据。

Studies on Pre-treatment Method of Determining Mineral Elements in Vegetables by ICP Spectrometer

ICP Spectrometric Method is a high-throughput and accuracy optical test for mineral elements determination. Cucumber, Chinese cabbage, pepper, radish and bean were chosen as materials for mineral elements determination by ICP spectrometric method. Some pre-treatment processes including selection of acid media, drawing method of standard curve, digestion method and different sample digesting state were studied. The results showed that appropriate pre-treatment method can cause some differences on the determination results because of the fresh juicy features of the vegetables. Appropriate pre-treatment method was chosen according to different traits of the samples. Thus, accurate experiment data can be acquired.