Preparation of porous polymer monolithic column incorporated with graphene nanosheets for solid phase microextraction and enrichment of glucocorticoids
文献类型：期刊论文
| 作者 | Tong SS ; Liu QW ; Li YC ; Zhou WH ; Jia Q ; Duan TC |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2012 |
| 卷号 | 1253页码:22-31 |
| 关键词 | PERFORMANCE LIQUID-CHROMATOGRAPHY GLYCOL DIMETHACRYLATE) MONOLITH TANDEM MASS-SPECTROMETRY EXCHANGE STATIONARY PHASES CAPILLARY ELECTROCHROMATOGRAPHY QUANTITATIVE-DETERMINATION GOLD NANOPARTICLES ION CHROMATOGRAPHY SURFACE-CHEMISTRY CARBON NANOTUBES |
| ISSN号 | 0021-9673 |
| 通讯作者 | jia q |
| 中文摘要 | novel monolithic capillary columns with embedded graphene were developed and used for polymer monolith microextraction (pmme) coupled to lc-ms analysis. the column was prepared inside fused silica capillaries (320 mu m, i.d.) using thermally initiated free-radical polymerization with butyl methacrylate (bma) as monomer, ethylene dimethacrylate (edma) as cross-linker, and 1,4-butanediol and 1-propanol as porogens. graphene (gn) was incorporated into the poly(bma-edma) monolith to enhance the loading capacity. the obtained gn and the poly(bma-edma-gn) monolith were characterized by transmission electron microscope (tem), atomic force microscopic (afm) and scanning electron microscopy (sem). the extraction performance of the monolithic column was evaluated by glucocorticoids (gcs) as the analytes. the operation parameters of pmme including desorption solvent, sample flow rate, sample volume, sample ph, and eluent flow rate were studied and optimized. when compared to the parent poly(bma-edma) column and direct sample analysis, high enrichment capacity was observed in the case of gn-entrapped monolith. the gn incorporated monolithic capillary showed satisfactory reusability and stability during extraction. the limits of detection (s/n = 3) for nine gcs were in the range of 0.13-1.93 ng/ml. relative standard deviations for the determination of the target gcs were less than 14.5%. finally, the pmme method, based on the developed monolithic capillary as the extraction media, was successfully applied to the determination of nine gcs in cosmetics. the recoveries of gcs spiked in different matrices ranged from 83.7% to 103.8%. (c) 2012 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000307793700004 |
| 公开日期 | 2013-04-23 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/47984]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tong SS,Liu QW,Li YC,et al. Preparation of porous polymer monolithic column incorporated with graphene nanosheets for solid phase microextraction and enrichment of glucocorticoids[J]. journal of chromatography a,2012,1253:22-31. |
| APA | Tong SS,Liu QW,Li YC,Zhou WH,Jia Q,&Duan TC.(2012).Preparation of porous polymer monolithic column incorporated with graphene nanosheets for solid phase microextraction and enrichment of glucocorticoids.journal of chromatography a,1253,22-31. |
| MLA | Tong SS,et al."Preparation of porous polymer monolithic column incorporated with graphene nanosheets for solid phase microextraction and enrichment of glucocorticoids".journal of chromatography a 1253(2012):22-31. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。