整体柱离子对色谱-间接紫外检测法快速分析吡咯烷离子液体阳离子

建立了快速分析无紫外光吸收的吡咯烷离子液体阳离子的离子对色谱-间接紫外检测法。采用反相硅胶整体柱，以（背景紫外吸收试剂-离子对试剂）水溶液-有机溶剂为流动相，分别讨论了背景紫外吸收试剂、检测波长、离子对试剂、有机溶剂、柱温及流速对分离测定吡咯烷阳离子的影响。最佳色谱条件为：以80％（V／V）（0．5mmol／L对氨基苯酚盐酸盐-0．1mmol／L庚烷磺酸钠）水溶液-20％（V／V）甲醇为流动相，检测波长230nm，柱温30℃，流速2．0mL/min。在此条件下，N-甲基，乙基吡咯烷阳离子、N-甲基，丙基吡咯烷阳离子和N-甲基，丁基吡咯烷阳离子在1．6min之内基线分离，检出限（S／N=3）分别...

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Bibliographic Details
Published in分析化学 Vol. 41; no. 7; pp. 1057 - 1062
Main Author 安莹 于泓 邹春苗
Format Journal Article
LanguageChinese
Published 光电带隙材料教育部重点实验室,哈尔滨师范大学化学化工学院,哈尔滨150025 2013
Subjects
吡咯烷离子液体阳离子
对氨基苯酚盐酸盐
整体柱
离子对色谱
间接紫外检测
离子对色谱
整体柱
4-Amiophenol hydrochloride
对氨基苯酚盐酸盐
Indirect ultraviolet detection
Pyrrrolidinium ionic liquid cations
间接紫外检测
Monolithic column
吡咯烷离子液体阳离子
Ion-pair chromatography
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ISSN0253-3820
DOI10.3724/SP.J.1096.2013.21027

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Summary:建立了快速分析无紫外光吸收的吡咯烷离子液体阳离子的离子对色谱-间接紫外检测法。采用反相硅胶整体柱，以（背景紫外吸收试剂-离子对试剂）水溶液-有机溶剂为流动相，分别讨论了背景紫外吸收试剂、检测波长、离子对试剂、有机溶剂、柱温及流速对分离测定吡咯烷阳离子的影响。最佳色谱条件为：以80％（V／V）（0．5mmol／L对氨基苯酚盐酸盐-0．1mmol／L庚烷磺酸钠）水溶液-20％（V／V）甲醇为流动相，检测波长230nm，柱温30℃，流速2．0mL/min。在此条件下，N-甲基，乙基吡咯烷阳离子、N-甲基，丙基吡咯烷阳离子和N-甲基，丁基吡咯烷阳离子在1．6min之内基线分离，检出限（S／N=3）分别为0．02，0．03和0．07mg／L，相对标准偏差（n=5）小于0．4％。将此方法用于分析实验室合成的离子液体样品，加标回收率在97．4％-98．0％之间。本方法快速、简单、准确、可靠，具有良好的实用性。
Bibliography:A method was developed for the fast determination of pyrrolidinium ionic liquid cations by ion-pair chromatography with indirect ultraviolet detection on a monolithic column. The analytes were separated using a mobile phase of background ultraviolet absorbing reagent-ion-pair reagent-organic solvent on a reversed-phase silica-based monolithic column. The effects of the background ultraviolet absorption reagents, detection wavelength, ion-pair reagents, organic solvents, column temperature and flow rate on the separation and determination of pyrrolidinium cations were investigated. The optimized chromatographic conditions for the determination of the cations were as follows： using 80% （0. 5 mmol/L 4-amiophenol hydrochloride- 0.1 mmol/L 1-heptanesulfonic acid sodium ） aqueous solution-20% （V/V）methanol as mobile phase, detection wavelength 230 nm, column temperature 30℃, flow rate 2. 0 mL/min. Under the optimal conditions, N-methyl, ethyl-pyrrolidinium cation, N-methyl, propyl-pyrrolidinium cation and N-methyl,
ISSN:0253-3820
DOI:10.3724/SP.J.1096.2013.21027