ICP-AES测定鲜蔬果等农作物中硅  

Determination of Silicon in the Crop Such as the Fresh Vegetable and Fruit by ICP-AES

作　　者：杜钰娉[1] 莫书伟[1] 郑淑华[1] 李海萍[1] 李其英[1] 

机构地区：[1]广东省物料实验检测中心

出　　处：《光谱实验室》2009年第5期1215-1218,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：试样经料理机打成浆体,湿-干法(700-750℃)消解完全,HCI-HF溶解后,加入适量H_3BO_3消除氟离子干扰,基体匹配后用ICP-AES测定鲜蔬果等农作物中硅。方法检出限0.48mg/L,回收率88%—120%,ICP-AES测定值与重量法测定值一致。本方法可快速、准确测定Si含量≥2.4mg/kg的农作物样品。Samples are mashed by the triturator,digested at 700—750℃,and dissolved in the medium of HCl-HF liquor.After adding proper H_3BO_3 liquor to remove disturbance of F^-,the amount of silicon was measured by ICP-AES.The detection limit is 0.48mg/L,the recovery is between 88% and 120%,which are agree with the result of gravimetric analysis.The method can be used in the determination of Si with the content≥2.4mg/kg.

关 键 词：鲜蔬果 硅 溶解 电感耦合等离子体-原子发射光谱法 

分 类 号：O657.31[理学—分析化学]