Hollow-fiber liquid-phase microextraction combined with high-performance liquid chromatography for analysis of melamine in milk products
文献类型：期刊论文
| 作者 | Wang, G. -Y.1,2; Chen, J.1; Shi, Y. -P.1 |
| 刊名 | Acta chromatographica
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 22期号:2页码:307-321 |
| 关键词 | Hollow fiber Liquid-phase microextraction Melamine High-performance liquid chromatography |
| ISSN号 | 1233-2356 |
| DOI | 10.1556/achrom.22.2010.2.12 |
| 通讯作者 | Shi, y. -p.(shiyp@lzb.ac.cn) |
| 英文摘要 | A novel liquid-phase microextraction (lpme) technique, based on a hollow fiber (hf), in conjunction with high-performance liquid chromatography, has been developed for analysis of melamine in milk products. melamine was extracted directly from milk products by use of a hollow-fiber membrane filled with organic solvent. hf-lpme conditions, for example ph, extraction solvent, temperature, stirring rate, and extraction time were optimized. the best extraction efficiency of melamine was achieved under the conditions:ph 9.5, 35 mu l n-octanol as extraction solvent, temperature 55 degrees c, stirring rate 300 rpm, and extraction time 30 min. the hf-lpme technique resulted in a preconcentration ratio of 29-fold. baseline chromatographic separation of melamine was achieved on a c(18) column with 96:4 (v/v) 0.02 mol l(-1) ammonium sulfate-methanol as isocratic mobile phase. the linearity of the method ranged from 1.0 to 100.0 mu g ml(-1), correlation coefficient 0.9994. the limit of detection by use of hf-lpme was 0.021 mu g ml(-1) at a signal-to-noise ratio of 3. the optimized hf-lpme technique was successfully applied to the analysis of melamine in milk products collected from different commodity manufacturing units. |
| WOS关键词 | MASS-SPECTROMETRY ; GAS-CHROMATOGRAPHY ; CAPILLARY-ELECTROPHORESIS ; MEMBRANE MICROEXTRACTION ; SAMPLE PREPARATION ; WATER ; PESTICIDES ; HERBICIDES |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Analytical |
| 语种 | 英语 |
| WOS记录号 | WOS:000279636700012 |
| 出版者 | AKADEMIAI KIADO RT |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2412309 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Shi, Y. -P. |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, G. -Y.,Chen, J.,Shi, Y. -P.. Hollow-fiber liquid-phase microextraction combined with high-performance liquid chromatography for analysis of melamine in milk products[J]. Acta chromatographica,2010,22(2):307-321. |
| APA | Wang, G. -Y.,Chen, J.,&Shi, Y. -P..(2010).Hollow-fiber liquid-phase microextraction combined with high-performance liquid chromatography for analysis of melamine in milk products.Acta chromatographica,22(2),307-321. |
| MLA | Wang, G. -Y.,et al."Hollow-fiber liquid-phase microextraction combined with high-performance liquid chromatography for analysis of melamine in milk products".Acta chromatographica 22.2(2010):307-321. |
入库方式： iSwitch采集
来源：中国科学院大学
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。