接装纸中As含量测定微波消解条件的选择  

Selection of Microwave Digestion Conditions for Determination of Arsenic Content in Tipping Paper

作　　者：雷敏[1] 李绍晔 杨春平[1] 刘丽清 谢更新[1] 

机构地区：[1]湖南大学环境科学与工程学院环境生物与控制教育部重点实验室,长沙市岳麓山8号410082 [2]湖南中烟工业有限责任公司长沙技术中心,长沙市劳动东路346号410014

出　　处：《烟草科技》2010年第4期44-47,64,共5页Tobacco Science & Technology

基　　金：湖南中烟工业有限责任公司科技计划项目(2008160801)资助

摘　　要：为了采用微波消解和氢化-原子荧光光谱法(HG-AFS)法准确测定卷烟接装纸中As含量,研究了消解体系、消解程序和赶酸程度,以及微波仪的类型等对接装纸中As测定量的影响。结果表明:①在微波条件下,HNO3∶HF∶HCl∶H2O2体积比=6∶0.2∶1∶1的体系可将接装纸样品消解完全;②As的检出限为1.38 ng/L,回收率98%～110%,RSD为6%～10%;③Berghof和CEM两种消解仪的消解效果基本一致。In order to accurately determine As in tipping paper samples by HG-AFS with microwave digestion,the effects of digestion system,digestion procedure,acid removal and type of microwave instrument on As determination were investigated.The results showed that： 1） tipping paper samples were completely digested in HNO3∶HF∶HCl∶H2O2=6∶0.2∶1∶1（v/v） system in a microwave field;2） the recoveries of As was from 98% to 110% with RSD of 6% to 10% and detection limit of 1.38 ng/L;3） the performance of microwave instrument Berghof was virtually the same as that of CEM.

关 键 词：微波 消解 接装纸 砷(As) 

分 类 号：TS761.2[轻工技术与工程—制浆造纸工程] TS411[农业科学—烟草工业]