摘要
建立了气相色谱法测定植株样品体内硝基苯含量的方法。以苯-丙酮（50：50，V／V）混合物作提取剂，高速匀浆后超声提取，硅镁型吸附剂净化，采用DB-1701石英毛细管色谱柱分离，GC—μECD检测。结果表明，3个水平添加时的回收率（n=5）分别为96．0％～107．0％、89．5％-99．5％和85．6％-97．8％；相对标准偏差均小于5％；方法检出限0．005μg／g；标准曲线相关系数r=0．9991。该方法可用于植株样品中硝基苯测定。
A method for determining nitrobenzene in plant by gas chromatography was developed. The nitrobenzene was extracted from plant with a mixture of benzene and acetone （50：50, V/V） by ultrasonic. The extracts were cleaned up by a column of Florisil. The nitrobenzene was detected by GC-μECD. The recoveries from plant samples（ n = 5） were 96.0% - 107.0%, 89.5% - 99.5% and 85.6% - 97.8% at 3 levels, respectively . The relative standard deviations were less than 5%. The limit of quantification for plant was 0. 003μg/g. The correlation coefficient of standard curves was 0. 9991. This method could be used for determining the residue of nitrobenzene in plant
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2007年第7期1047-1050,共4页
Chinese Journal of Analytical Chemistry
基金
吉林省科技厅重大项目(No200516-26)资助
作者简介
E-mail：jlndwangyujun@163．com
