Paper chromatographic evaluation of the contribution to polarity of hydroxyl and other groups at the C-17, C-20 and C-21 positions of the pregnane side chainSchneider JJ, Lewbart ML.doi:10.1016/S0021-9673(01)82386-4John J. Schneider
In Thin Layer Chromatography, how is the technique dependent on polarity? Explain the time needed for analysis of both column chromatography and thin layer chromatography Describe the Chromatography process and the different azo dyes used. What is a general term used to describe any form of chromato...
Chromatography Beijing World Youth Academy 2 Subject: Chemistry Student name: YeiYoung Choo Candidate number: 000791 011 January 28, 2009 Teacher Helen Xu Investigating the Effect of Polarity of Solvent on Retention Time in Paper Chromatography ...
标题:Improved assay for malondialdehyde determination in surimi by gas chromatography-mass spectrometry after alkaline hydrolysis 作者:Wenjie Wang, Zhiwen Zhang, Zhigang Ke, Yuting Ding, Xuxia Zhou 卷号:Food Science of Animal Products 2024, 2(3): 9240073 链接:https://www.sciopen.com/article/10.265...
aWe still haven't obtained the pure product because the chemical polarity is low. We tried several times to separate by silica column chromatography method, but still didn't get the qualified product. 因为化工极性是低的,我们仍然未获得纯净的产品。 我们尝试了多次由硅土柱层析方法分离,但仍然没得到...
Kinetic and equilibrium measurements were made using amide hydrogen exchange/mass spectrometry, light scattering, and size-exclusion chromatography. Hydrogen exchange in GroEL destabilized in 1.8 M GdHCl (the unfolding midpoint is 1.2 M GdHCl) shows that the apical and intermediate domains unfold 3.1...
标题:Improved assay for malondialdehyde determination in surimi by gas chromatography-mass spectrometry after alkaline hydrolysis 作者:Wenjie Wang, Zhiwen Zhang, Zhigang Ke, Yuting Ding, Xuxia Zhou 卷号:Food Science of Animal Products 2024, 2(3): 9240073 ...
Antifungal metabolites were identified by using reversed phase high performance liquid chromatography, high resolution mass spectrometry, nuclear magnetic resonance, and UV-Vis spectroscopy and tested for efficacy of inhibiting the pathogen. Two metabolites, indole-3-carboxaldehyde and violacein, inhibited ...
标题:Reversible doping polarity and ultrahigh carrier density in two-dimensional van der Waals ferroelectric heterostructures 作者:Yanyan Li, Mingjun Yang, Yanan Lu, Dan Cao, Xiaoshuang Chen, Haibo Shu 卷号:Frontiers of Physics , 2023, 18(3): 33307. ...
The mean molecular weights were determined by size exclusion chromatography (GPC) under the following conditions: eluent: DMSO/-i- 0.1 M LiCI; precolumn: 10 μm, Guard, ID 8.00 mm×50.00 mm; columns: 10 μm, 30 Å, ID 8.00 mm×300.00 mm; 10 μm, 3000 A, ID 8.00 mm×300.00 mm...