摘要
建立了使用阴离子交换分离柱，NaOH淋洗液，电化学检测器测定烟草制品中痕量麦芽酚的离子色谱检测方法。方法基于麦芽酚在NaOH溶液中转化为阴离子，使用CarboPacPAl型分离柱和NaOH淋洗液进行分离；利用酚羟基在玻碳电极上的特异响应，使用ED电化学检测器进彳亍分析。在2．60×10-2～26．00mg／L浓度范围内，工作曲线的线性相关系数为0．9999，检出限为2．26垤皿；测定的整个过程可在15min内完成。方法用于烟草样品的分析，结果令人满意，加标回收率在97％～102％之间。
A new method was developed for the determination of trace maltol in tobacco products using anion-exchange column, sodium hydroxide eluent and electrochemical detector. The sodium hydroxide was used to promote ionization of maltol to its anionic form. The maltol can be eluted within 15 min by anion-exchange column CarboPac PAl with elution of NaOH. Detection occurred by measuring the current generated when the maltol anions were oxidized on a glass carbon electrode of ED electrochemical detector. The presented method showed good linear relationship （r=0.9999） for maltol in the range of 2.60×10-2-26.00 mg/L, the detection limit was 2.26 μg/L. This method has been applied to the determination ofmaltol in tobacco samples successfully, and the recoveries vary from 97% to 102%.
出处
《现代食品科技》
EI
CAS
北大核心
2013年第3期651-653,共3页
Modern Food Science and Technology
关键词
离子色谱
电化学检测
麦芽酚
烟草及烟草制品
ion chromatographic determination
electrochemical detection
maltol
tobacco and tobacco products
