色谱
色譜
색보
Chinese Journal of Chromatography
2015年
11期
1155-1162
,共8页
吕雅瑶%郝斐然%王欢欢%付斌%钱小红%张养军
呂雅瑤%郝斐然%王歡歡%付斌%錢小紅%張養軍
려아요%학비연%왕환환%부빈%전소홍%장양군
毛细管液相色谱-质谱联用%毛细管色谱柱%装柱装置%多通道
毛細管液相色譜-質譜聯用%毛細管色譜柱%裝柱裝置%多通道
모세관액상색보-질보련용%모세관색보주%장주장치%다통도
capillary liquid chromatography-mass spectrometry( CLC-MS)%capillary chroma-tographic column%packing column apparatus%multiple-channel
针对目前毛细管色谱柱装柱效率低、不同批次装填的毛细管色谱柱之间性能差异大的问题,我们发展了一种多通道匀浆装填毛细管色谱柱的新装置。该装置以液相色谱泵提供压力、采用磁力搅拌保持匀浆液均匀分散,一次可装填多达6根毛细管色谱柱。以牛血清白蛋白( BSA)的胰蛋白酶酶切肽段混合物为样本,选择峰容量、蛋白覆盖率、3个特定离子的保留时间以及毛细管色谱柱柱压为指标,在毛细管液相色谱-质谱联用系统上对装填的反相毛细管色谱柱的性能进行了评价。分别考察了一次装填的6根毛细管色谱柱、两次装填的12根毛细管色谱柱以及一次装填1根与一次装填6根毛细管色谱柱的性能及稳定性。实验结果表明:同一批次装填的6根毛细管色谱柱的性能相近;不同批次装填的12根毛细管色谱柱的峰容量和覆盖率没有明显的区别,但保留时间和毛细管色谱柱柱压的稳定性较差;一次装填1根和一次装填6根毛细管色谱柱柱性能的稳定性与两次分别装填6根毛细管色谱柱的稳定性相近,即采用本装置可显著提高毛细管色谱柱的装填效率且每次装填毛细管色谱柱的数量不会对柱性能产生影响。
針對目前毛細管色譜柱裝柱效率低、不同批次裝填的毛細管色譜柱之間性能差異大的問題,我們髮展瞭一種多通道勻漿裝填毛細管色譜柱的新裝置。該裝置以液相色譜泵提供壓力、採用磁力攪拌保持勻漿液均勻分散,一次可裝填多達6根毛細管色譜柱。以牛血清白蛋白( BSA)的胰蛋白酶酶切肽段混閤物為樣本,選擇峰容量、蛋白覆蓋率、3箇特定離子的保留時間以及毛細管色譜柱柱壓為指標,在毛細管液相色譜-質譜聯用繫統上對裝填的反相毛細管色譜柱的性能進行瞭評價。分彆攷察瞭一次裝填的6根毛細管色譜柱、兩次裝填的12根毛細管色譜柱以及一次裝填1根與一次裝填6根毛細管色譜柱的性能及穩定性。實驗結果錶明:同一批次裝填的6根毛細管色譜柱的性能相近;不同批次裝填的12根毛細管色譜柱的峰容量和覆蓋率沒有明顯的區彆,但保留時間和毛細管色譜柱柱壓的穩定性較差;一次裝填1根和一次裝填6根毛細管色譜柱柱性能的穩定性與兩次分彆裝填6根毛細管色譜柱的穩定性相近,即採用本裝置可顯著提高毛細管色譜柱的裝填效率且每次裝填毛細管色譜柱的數量不會對柱性能產生影響。
침대목전모세관색보주장주효솔저、불동비차장전적모세관색보주지간성능차이대적문제,아문발전료일충다통도균장장전모세관색보주적신장치。해장치이액상색보빙제공압력、채용자력교반보지균장액균균분산,일차가장전다체6근모세관색보주。이우혈청백단백( BSA)적이단백매매절태단혼합물위양본,선택봉용량、단백복개솔、3개특정리자적보류시간이급모세관색보주주압위지표,재모세관액상색보-질보련용계통상대장전적반상모세관색보주적성능진행료평개。분별고찰료일차장전적6근모세관색보주、량차장전적12근모세관색보주이급일차장전1근여일차장전6근모세관색보주적성능급은정성。실험결과표명:동일비차장전적6근모세관색보주적성능상근;불동비차장전적12근모세관색보주적봉용량화복개솔몰유명현적구별,단보류시간화모세관색보주주압적은정성교차;일차장전1근화일차장전6근모세관색보주주성능적은정성여량차분별장전6근모세관색보주적은정성상근,즉채용본장치가현저제고모세관색보주적장전효솔차매차장전모세관색보주적수량불회대주성능산생영향。
A novel multiple-channel apparatus for packing capillary chromatographic column was designed and manufactured for packing six capillary chromatographic columns with close column efficiency at the same time. Briefly,it consists of a magnetic stirrer,a liquid chromato-graphic pump and a multiple-channel can. The reagents used for preparing ODS( C18)slurry and stirring condition of the magnetic stirrer were optimized in the study. Two batches of capil-lary chromatographic columns were packed under the optimum condition,and these packed capillary chromatographic columns were evaluated in the terms of peak capacity,sequence cov-erage,retention times of three peptide ions and column pressure using the tryptic digest of a bovine serum albumin( BSA)and detected by LC-MS in electrospray ionization( ESI)mode. The experimental results showed that the six capillary chromatographic columns packed at the same time had close column efficiencies,however,the column efficiencies of twelve capillary chromatographic columns packed at two times were significantly different. In addition ,there was no significant column efficiency difference when packing one or six capillary chromato-graphic columns at the same time. The multiple-channel apparatus designed by us is simple, time-saving,and can be applied to pack capillary chromatographic columns with similar column efficiencies,thus it is of evident advantage over traditional one-channel apparatus.