摘要
在不除氧条件下，研究了用1，2-二溴环己烷或溴代环己烷作重原子微扰剂时芘的环糊精诱导室温膦光特征。实验表明，在1，2-二溴环己烷存在下，芘分析曲线范围为1．0×10^-6～3．0×10^-5moL／L，检出限为5．1×10^-8mol／L，相对标准偏差5．23％；溴代环己烷存在下，芘的线性范围为9．0×10^-7～1．0×10^-6mol／L，检出限为2．0×10^-7mol／L，相对标准偏差1．23％。与传统的环糊精诱导室温烧光法中除氧条件下测定相比，快速、简便。以1，2-二溴环己烷为重原子微扰剂，对焦化厂污水、污泥、生活污水、普通香烟和烟煤中芘的测定，平均回收率为95．5％～102．4％。方法可靠，效果良好。
The characteristics of cyclodextrin induced room temperature phosphorescence （CD-RTP） of pyrene were investigated without deoxygenation by 1, 2-dibromocyclohexane （DBCH） or bromocyclohexane （BCH） as a heavy atom perturber. The experimental results indicated that the linear range of analytical curve of CD-RTP of pyrene was 1.0 × 10^-6 - 3.0 × 10^-5 mol/L in the presence of DBCH, the detection limit was 1.0 × 10^-7mol/L, with a relative standard deviation of 5.2% ; and those were 9.0 × 10^-7 - 1.0 × 10^-6 mol/L, 2.0 × 10^-7mol/L, and 1.2%, respectively, in the presence of BCH. Compared with the traditional CD-RTP with deoxygenation, the present method was rapid and facile. The method with DBCH as a heavy atom perturber was applied to the determination of pyrene in practical samples, such as polluted water and sludge of coking factory, sewage, cigarette and soft coal, the average recoveries of them in samples were from 95.5% to 102.4%. The method is trustful and the results are satisfactory.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2008年第12期1695-1698,共4页
Chinese Journal of Analytical Chemistry
基金
山西省自然科学基金(No.20051028)
忻州师院大学生科技创新基金(No.2006106)资助
关键词
芘
室温膦光
环糊精
1
2-二溴环己烷
溴代环己烷
Pyrene, room temperature phosphorescence, cyclodextrin, 1,2-dibromocyclohexane, bromocyclo hexane
