摘要
将环己烷(CH)引入β-环糊精(β-CD)诱导西维因(CBL)室温磷光(RTP)体系,由于CH和β-CD及CBL形成包络物,可观测到CBL强的RTP.研究了温度、pH值以及形成包络物的3种组分物质的浓度变化对这一体系RTP的影响,优化了实验条件,建立了CBL的RTP测定方法.实验结果表明,在2.0～20.0 μg/L质量浓度范围内,CBL的RTP强度和其浓度成正比,方法检出限达0.43μg/L,相对标准偏差小于1.50%(n=7).将该方法用于合成样品的分析,结果满意.
An intensive room-temperature phosphorescence(RTP)of Carbaryl(CBL)was observed inβ-Cy-clodextrin(β-CD)aqueous solution in the presence of Cyclohexane(CH)due to the formation ofβ-CD/CBL/CHinclusion complexes.The effects oftemperature,pHvalues and the variation of concentrations ofeach com-ponent on RTP have been investigated.Under the optimal conditions,an analytical method for the determina-tion of CBL in synthetic samples was established.The correlation coefficient of the calibration curve of CBL was0.9943and the linear range was of2.0-20.0μg/L.The detection limit was0.43μg/L and the aver-age relative standard deviation was less than1.50%(n=7).
出处
《分析测试学报》
CAS
CSCD
北大核心
2005年第4期21-23,27,共4页
Journal of Instrumental Analysis
基金
国家自然科学基金资助项目(20377035)
关键词
西维因
环己烷
包络物
室温磷光
Carbaryl
Cyclohexane
Inclusion complexes
RTP
