Why is it important not to dilute the initial sample before it has been loaded onto the chromatography column? Why is it important to prevent having air bubbles in the column chromatography? Why does chromatography work? What is the advantage of using an internal standard in a g...
aOctadecylsilyl silica gel for chromatography Octadecylsilyl矽土凝胶为色谱法 [translate] aColumbia University (NY) 哥伦比亚大学(NY) [translate] aPls check with them why pending this work. Pls检查与他们为什么等待这工作。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 ...
1. What would be the result of failing to mark the solvent front after developing a TLC plate? Would this affect your ability to calculate component Rt values? Why or why not? 2. What would happen if Why can't we use gas chromatography to analyze the sample of...
doi:10.1007/3-540-32357-0_11Lester CraftSpringer Berlin Heidelberg
This ratio, also called aggregation index (AI), should be close to zero for aggregate-free protein preparations and can attain high values (>1) when significant aggregation occurs. Size-exclusion chromatography As already stressed above, DLS does not have the sufficient resolution to cor- rectly ...
A new, specific, rapid gas chromatography-mass spectrometry (GC-MS) method was described to identify and quantify pregabalin in human plasma. Silylation and acylation reaction were tried for derivatization of pregabalin before GC-MS analysis. Derivatization was achived using N-(tert-butyldimethylsilyl...
In column chromatography, the bed volume is influenced by: a.) the eluent being applied to the column. b.) the stationary phase. c.) the temperature. d.) the radius of the column. If life began on Earth 3.8 billion years ago from chemical ...
There are currently many different autosamplers on the market, however they all work in a similar manner. Central to the design is the use of a two position port valve, which is used to transfer the sample from an injection device to the fluidic system of the chromatography system. For ...
Later, the strengths of both IMAC and TiO2 chromatography were combined in the SIMAC method (sequential elution from IMAC) improving not only the number of phosphorylation sites detected from complex samples, but also significantly increasing the detec- tion of multiply phosphorylated peptides ...
Why does an electron cloud want to have a stable amount of electrons per energy level? Why can stem cells become any type of cell? Why does water bead on a freshly washed or freshly waxed car? What is gas liquid chromatography? And how is it done?