摘要
发展了用咪唑离子液体作为流动相添加剂的亲水作用色谱-间接紫外检测四丁基磷和四丁基铵的分析方法。研究了咪唑离子液体、吡啶离子液体作为流动相添加剂对四丁基磷和四丁基铵分析的影响,考察了咪唑离子液体的浓度、有机溶剂含量、检测波长等因素的影响,并讨论了离子液体的作用。采用亲水作用色谱柱,以乙腈-1.0 mmol/L 1-乙基-3-甲基咪唑四氟硼酸盐(体积比60∶40)为流动相,在色谱柱温度30℃,流速1.0 mL/min,紫外检测波长210 nm条件下,四丁基磷和四丁基铵离子在15 min内得到完全分离。检出限为1.0~1.2 mg/L,线性和重现性良好。将此方法应用于松花江水样品和克音河水样品的分析,加标回收率为95.9%~107%。该方法简单,易于应用。
An analytical method of hydrophilic interaction chromatography with indirect ultraviolet detection was developed for the determination of tetrabutylphosphorus and tetrabutylammonium using ionic liquids as mobile phase additives.Effects of imidazolium ionic liquids,pyridinium ionic liquids,organic solvents,detection wavelengthes and other factors on the determination of tetrabutylphosphorus and tetrabutylammonium were investigated.The roles of ionic liquids were discussed.The separation and detection of tetrabutylphosphorus and tetrabutylammonium were achieved within 15 min on a hydrophilic interaction chromatographic column at 30℃,with acetonitrile-1.0 mmol/L 1-ethyl-3-methylimidazolium tetrafluoroborate(60∶40,by volume)as mobile phase at a flow rate of 1.0 mL/min,and the ultraviolet detection wavelength was set at 210 nm.The limits of detection for the analytes were in the range of 1.0-1.2 mg/L.The linearity and reproducibility of the method were good.The method was applied in the analysis of Songhua River water samples and Keyin River water samples with the spiked recoveries between 95.9%and 107%.This method is simple and easy to use.
作者
万长长
郭苑
关福晶
于泓
WAN Chang-chang;GUO Yuan;GUAN Fu-jing;YU Hong(Heilongjiang Province Key Laboratory of Photochemical Biomaterials and Energy Storage Materials,College of Chemistry and Chemical Engineering,Harbin Normal University,Harbin 150025,China)
出处
《分析测试学报》
CAS
CSCD
北大核心
2020年第4期532-536,共5页
Journal of Instrumental Analysis
基金
黑龙江省自然科学基金(B201307)
哈尔滨师范大学创新团队项目。
关键词
离子液体
亲水作用色谱
四丁基磷
四丁基铵
间接紫外检测
ionic liquids
hydrophilic interaction chromatography
tetrabutylphosphorus
tetrabutylammonium
indirect ultraviolet detection
作者简介
通讯作者:于泓,博士,教授,研究方向:离子色谱和高效液相色谱分析,E-mail:yuhonghsd@126.com。
