微波消解-离子色谱法测定烟草中的全硫 Determination of Total Sulfur in Tobacco with Microwave Digestion-Ion Chromatography.pdfVIP
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微波消解-离子色谱法测定烟草中的全硫 Determination of Total Sulfur in Tobacco with Microwave Digestion-Ion Chromatography
烟草:技/Tobacco 2011年第10期(总第291期) Science&Technology烟草化学/Tob∞coChemistry 微波消解一离子色谱法测定烟草中的全硫 郝红玲。何爱民,苏国岁 河北中烟工业有限责任公司技术中心,石家庄市桥西区工农路360号05005l 关键词:微波消解;离子色谱;烟草;全硫;无机硫 摘要:为了测定烟草中全硫含量,采用微波消解技术将各种形态的硫转化为硫酸盐,考察了离子色谱法 的消解和赶酸条件,用国家一级标准物质灌木枝叶验证了方法的准确度,并采用本方法和直接萃取一离 子色谱法分别测定了部分烟叶中全硫和无机硫含量。结果表明:①该方法的相对标准偏差(RSD) 2%,加标回收率为94.8%一101.9%,灵敏度高,重复性好,准确度较高;②所测烟叶中无机硫与全硫舍 量呈极显著正相关(r=0.9934)。 中图分类号:Ts411.1文献标识码:B文章编号:1002—0861(2011)10—0039—05 in withMicrowave DeterminationofTotalSulfurTobacco Digestion-IonChromatography HAO SUGUO—SUI HONG-LING,HEAI—MIN,and CenterofChinaTobaccoHebeiIndustrial 05005 1,China Technology Corporation,Shijiazhuang sulfur Keywords:Microwave sulfur;Inorganic digestion;Ionchromatography;Tobacco;Total ordertodeterminethecontentoftotalsulfurintobaccowithion totalsulfur Abstract:In chromatography,the the and removal intobaccowasconvertedintosulfatemicrowave treatment,and acid by digestion digestion conditionswere methodwasvalidatedthe ofnationalstandard investigated.Theproposed by analyses material, bush and thetotalsulfurand sulfurinsometobaccoleaf were twigs leaves,and inorganic samplesanalyzedby this direct resultsshowed recoveries methodand extraction—ion that:1)the chromatography,respectively.The oftotalsulfur from94.8%to101.9%withtheRSDof2%.themethoddemonstrated ranged higher
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