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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Extraction and determination of papaverin in pericarpium papaveris using aqueous two-phase system of poly(ethylene glycol)-(NH4)(2)SO4 coupled with high-performance liquid chromatography 期刊论文 analytica chimica acta, 2007 Cao, Qing; Li, Shehong; He, Chiyang; Li, Kean; Liu, Feng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 extraction  papaverin  paricarpium papaveris  aqueous two-phase system  high-performance liquid chromatography  OPIUM-ALKALOIDS  IONIC LIQUID  URINE  EPITESTOSTERONE  TESTOSTERONE  EQUILIBRIA  SEPARATION  CHLORIDE  BLOOD   Extraction and determination of morphine in compound liquorice using an aqueous two-phase system of poly(ethylene glycol)/K2HPO4 coupled with HPLC 期刊论文 talanta, 2007 Li, Shehong; He, Chiyang; Gao, Fei; Li, Daobing; Chen, Zheng; Liu, Huwei; Li, Kean; Liu, Feng 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/11 extraction  morphine and its analogs  aqueous two-phase systems  compound liquorice  HPLC  LC-MS  PERFORMANCE LIQUID-CHROMATOGRAPHY  TETRABUTYLAMMONIUM BROMIDE  OPIUM-ALKALOIDS  IONIC LIQUID  PURIFICATION  MECHANISM  EPITESTOSTERONE  TESTOSTERONE  SEPARATION  COMPLEX   Ionic liquid-based aqueous two-phase system, a sample pretreatment procedure prior to high-performance liquid chromatography of opium alkaloids 期刊论文 journal of chromatography b analytical technologies in the biomedical and life sciences, 2005 Li, SH; He, CY; Liu, HW; Li, K; Liu, F 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 aqueous two-phase systems  ionic liquid  extraction  opium alkaloids  SOLID-PHASE EXTRACTION  MASS-SPECTROMETRY  BIPHASIC SYSTEMS  MORPHINE  URINE  ELECTROPHORESIS  RECOVERY  PLASMA  BLOOD  SALTS   Extraction of testosterone and epitestosterone in human urine using aqueous two-phase systems of ionic liquid and salt 期刊论文 journal of chromatography a, 2005 He, CY; Li, SH; Liu, HW; Li, K; Liu, F 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 extraction  ionic liquid  aqueous two-phase systems  testosterone  epitestosterone  human urine  PHASE MICROEXTRACTION  GAS-CHROMATOGRAPHY  SOLVENT-EXTRACTION  MASS-SPECTROMETRY  BIPHASIC SYSTEMS  BOVINE SERUM  BEHAVIOR  SEPARATIONS  IONIZATION  CATALYSIS   外加盐作用形成的正负离子表面活性剂双水相 其他 2003-01-01 陈莉; 肖进新; 马季铭 收藏  |  浏览/下载：4/0  |  提交时间：2015/10/24 正负离子表面活性剂混合体系  双水相体系(ATPS)  蛋白质分配  catanionic surfactant mixtures  aqueous two-phase system(ATPS)  protein partitioning