| 1. | Electrospray ionization mass spectra of nucleoside 5 - thiophosphoramidates 硫代磷酰氨基酸酯电喷雾质谱研究 |
| 2. | Study on combination principle of compound prescription of traditional chinese medicine using electrospray ionization mass spectrometric technique 利用电喷雾质谱技术研究复方中药的配伍原则 |
| 3. | Rapid analysis of triterpenoid saponins in plant extracts from leaves of acanthopanax senticosus harms using electrospray ionization multi - stage tandem mass spectrometry esi - ms n 快速分析刺五加叶粗提物中三萜皂苷成分 |
| 4. | A vacuum interface used for atmospheric pressure ionization ion source was designed to couple with an orthogonal - injection electrospray ionization time - of - flight mass spectrometer ( tofms ) 摘要研制了一种大气压离子源真空接口,并已将其用于自制高分辨率垂直引入式电喷雾电离飞行时间质谱仪。 |
| 5. | Three different extraction methods ( cold methanol , hot ethanol and alkali extraction ) were analyzcd and compared using the direct infusion electrospray ionization - mass spectrometry ( esi - ms ) as the evaluation standard 本研究以特定厌氧条件下培养的大肠杆菌为研究对象,以电喷雾质谱直接进样测定为评价标准,比较并分析了冰甲醇、热乙醇和碱抽提3种抽提方法。 |
| 6. | Methods and results : proteomics approaches involve three critical techniques : two dimensional electrophoresis , biological mass spectrometry and bioinformatics . in 2 - de , we applied traditional ief in the first dimension and tris - tricine system in the second dimension and acquired protein profiles of serum and skin samples . in the identification of 10 proteins of serum and 16 proteins of skin , we acquired peptide mass of fingerprint ( pmf ) maps for all targets by means of matrix - assisted laser desorption - ionization time of flight mass spectrometry ( maldi - tof - ms ) and partial aminio acid sequences for 9 proteins by means of electrospray ionization ms / ms ( lisi - ms / ms ) 研究方法:采用双向电泳技术获取泥鳅创伤前后血清和皮肤的小分子蛋白图谱,利用基质辅助激光解析飞行时间检测质谱分析( matrix - assistedlaserdesorption - ionizationtimeofflightmassspectrometry , maldi - tof - ms )和电喷雾离子化串连质谱分析( electrosprayionizationms / ms , esi - ms hs )分别获得差异蛋白点的肽指纹图谱( peptidemassoffingerprint , pmf )和部分序列信息,通过互联网上的expasy服务器中和ncbi的相关软件将这些信息和swissprot数据库进行匹配鉴定蛋白质种类。 |
| 7. | The structures of phenylethanoid glycosides in plant extract of cistanches deserticola were successfully analyzed and identified by electrospray ionization multi - stage mass spectrometry ( esi - ms ( superscript n ) ) in negative mode , some interesting neutral losses were found , which helped us to confirm the structures of compounds without tedious separation and purification procedures , then the fragmentation mechanisms were explored 摘要采用电喷雾多级串联质谱技术,对肉苁蓉药材粗提物中的苯乙醇苷类化合物的特征质谱行为进行了系统研究,根据一些特征的中性碎片丢失,提出了该类化合物的质谱裂解规律。 |