理学 >>> 化学 >>> 无机化学 有机化学 分析化学 物理化学 化学物理学 高分子物理 高分子化学 核化学 应用化学 化学其他学科
搜索结果: 61-75 共查到化学 MS相关记录242条 . 查询时间(0.117 秒)
A sensitive liquid chromatography-electrospray ionization-tandem mass spectrometric(LC-MS/MS) method for the simultaneous determination of TF and its metabolites M1 and M2 in human plasma were develop...
A headspace-GC/MS method for the determination of dimethylcyclosiloxane in enameled wires was developed. The dimethylcyclosiloxane such as hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, dec...
Sialic acid and lysine as an internal standard substance, the ESI-MS fingerprinting of extracts of Compound Indigowoad Root Granule which from different origin was studied. The fingerprinting was obta...
A purge and tram combining with solid-phase extracting method/GC-MS was applied in pretreatment on the detection of serial sorts of organic contaminant, such as phenols, polycyclic aromatic hydrocarbo...
Rubusoside is a major sweet component in Rubus suavissimus S . Lee(sweet tea), which is a special product of Guangxi Province, China. A liquid chromatography-electrospray ionization mass spectrometry(...
In the work, magnetic strong cation exchange(MSCX) resins were successfully prepared and applied to the extraction of melamine(MEL) from egg samples. The extraction procedure was carried out in a sing...
A simple and rapid method for the analysis of 12 bile acids was developed based on LC/MS. Quantification was finished in 7 min. For different bile acids, the detection limits ranged from 0.006 1 to 0....
The discrimination of four pairs of cyclic peptide diastereomers were successfully achieved by ESI-MS. The ratio of ions’ abundance ratios between A and B isomers in MS/MS spectra was defined as a par...
ESI-MS analytical method was employed to study extracts of unprocessed and processed Radix Paeoniae alba. The results of the experiments prove that different processed methods is making a certain diff...
A GC/MS-SIM method for the determination of dimethyl fumarate in leather and leather products was developed. The dimethyl fumarate was extracted from leather by dehydrous ethyl acetate using ultrasoni...
A GC/MS method was developed for the determination of cyanuric acid residue in package materials. The detection was performed by mass spectrometry with electro-spray ion mode. The results show that th...
An essential oil was extracted from the traditional Tibetan medicine of Pyrethrum tatsienense by steam distillation method. The chemical components of the essential oil were analyzed by gas chromatogr...
The isoflavonoids from Iris tectorum were analyzed by electrospray ionization tandem mass spectrometry(ESI-MS/MS). Based on the information of pseudo molecular ions and daughter ions were obtained by ...
A purg & trap-GC/MS/SIM method for the determination of the migration of monomers such as vinylidene chloride, acrylonitrilein and 1,3-butadiene in water food simulants of materials in contact with fo...
The non-covalent interaction between a series of N-diisopropylphosphoryl dipeptides(or methyl esters) (DPP) and amino acids was studied by ESI-MS. The results show that aromatic rings to form π–π conj...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...