有机直接进样-电感耦合等离子体原子发射光谱法直接测定醇系食品模拟物中特定元素的迁移量  

ICP-AES Determination of Specific Migration Elements in Alcoholic Food Simulants with Organic Direct Injection

作　　者：杨蓓[1] 萧达辉[1] 李涵[1] 黄金宇[1] 梁淑华[1] 李政军[1] 郑建国[1] 

机构地区：[1]广东出入境检验检疫局检验检疫技术中心,广州510623

出　　处：《理化检验（化学分册）》2015年第8期1084-1086,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：广东检验检疫局科技项目(2013GDK11);国家质检总局科研项目(2010IK038)

摘　　要：采用有机直接进样-电感耦合等离子体原子发射光谱法直接测定醇系食品模拟物中特定元素钡、钴、铜、铁、锰、锌和锂的迁移量。有机进样系统的射频功率为1350W，雾化气流量为0．30L·min-1，冷却气流量为13L·min，辅助气流量为1．0L·min～-1。7种元素在一定的质量浓度范围内与其发射强度呈线性关系，方法的检出限（3s）在0．6～7．8μg·L叫之间。加标回收率在98．29／5～107％之间，测定值的相对标准偏差（n=7）小于2．0％。ICP-AES was applied to the determination of specific migration elements, i.e. Ba, Co, Cu, Fe, Mn, Zn, and Li in alcoholic food sinmlants with organic direct injection. RF power was 1 350 W, nebulize gas flow was 0. 30 L ·min-1 , cooling gas flow was 13 L · min-1 , and assistant gas flow was 1. 0 L ·main 1 in system of organic direct injection. Linear relationships between values of emission intensity and mass concentration of the 7 elements were kept in definite ranges. Detection limits （3s） found were ranged from 0. 6 to 7. 8μg · L 1. Values of recovery found by standard addition method were in the range of 98. 2%-107%, and values of RSDIs （n=7） less than 2. 0 %.

关 键 词：电感耦合等离子体原子发射光谱法 有机直接进样 醇系食品模拟物 

分 类 号：O657.31[理学—分析化学]