烟用接装纸中铬赋存形态分析  

Speciation Analysis of Chromium in Tipping Paper for Cigarette by High Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometry

作　　者：牛佳佳[1] 李峰[2] 陈连芳[1] 韩冰[2] 胡静[2] 姜赟赟[3] 

机构地区：[1]中国烟草总公司郑州烟草研究院,郑州450001 [2]广东中烟工业有限责任公司,广州510165 [3]吉林大学,长春130022

出　　处：《分析化学》2013年第8期1283-1286,共4页Chinese Journal of Analytical Chemistry

摘　　要：建立了高效液相色谱-电感耦合等离子体质谱联用(HPLC-ICP-MS)快速测定Cr3+和Cr6+的铬形态分析的方法,铬形态有效分离可控制在3 min以内,Cr(Ⅲ)和Cr(Ⅵ)检出限分别达0.54和1.1μg/L。建立了基于PFA自密闭罐的低压密闭消解进行有机铬和总铬的快速、简洁样品前处理方法,以2 mL HNO3为氧化介质,在120℃消解2 h,可实现有机/无机总铬消解完全。以乙酸乙酯为提取剂,实现了有机铬的超声辅助快速提取。研究表明,接装纸中铬主要以高度固化的有机铬形式存在,有机铬含量约占总铬含量的85%～95%。A fast analytical method based on HPLC-ICP-MS for the speciation of Cr3＋ and Cr6＋ in aqueous solution was established.The total separation time could be finished in 3 min,and the detection limit of Cr3＋ and Cr6＋was 0.54 μg/L and 1.1 μg/L respectively.In addition,a new fast sample treatment method based on PFA self-sealing bottles for the determination of inorganic Cr and total Cr was also developed,and the complete sample decomposition could be realized with 2 mL HNO3 at 120 ℃ in 1 h.The organic Cr could be fully and quickly extracted by ethyl acetate.After comprehensive investigation,the results revealed that Cr was primarily existed as immobilized organic Cr in the tipping paper,and the concentration level reached 85%-95%.

关 键 词：高效液相色谱 电感耦合等离子体质谱 联用技术 烟用接装纸 铬的形态 

分 类 号：TS77[轻工技术与工程—制浆造纸工程]