evoh has been unable to dissolve in the determination of nuclear magnetism, the use of DMSO solvent, in addition to nuclear magnetism there is any better method for the determination of hydroxyl content?
Ransomware attack has become a common criminal pattern, but the governance of countries basically focuses on fraud and computer crime. Dear colleagues, I would like to ask you how the definition...
21 May 2024 262 8 View
I prepare the precursor with both hydroxy and Nitrogenous group on the side chain by RAFT. Then, through the method mentained in the following literature that add AIBN to wipe off the residue of...
11 May 2024 2,941 0 View
使用购买的EVA(VA含量40%)产品,在甲苯溶液中溶解,然后添加了氢氧化钠和醇的混合溶液,浓度大概有1mol/l和0.25mol/l的。 产品测试红外结果较为正常,但是在DMSO中一直无法溶解,困扰了很久。有没有做这方面研究的大佬可以解答一下或者讨论一下。是否自己合成的EVA再去做EVOH会好溶于dmso一些。
21 December 2023 7,565 0 View
The purchased EVA (VA content 40%) product is dissolved in toluene solution, and then a mixture of sodium hydroxide and alcohol is added, the concentration is about 1mol/l and 0.25mol/l. The...
21 December 2023 8,974 3 View
I’m currently conducting research on telomeres in THP-1 cells. During my gel electrophoresis experiments using a 1% gel, I’ve encountered an issue where the DNA seems to be stuck at the top of the...
29 October 2023 9,561 7 View
How to dissolve styrene-acrylic resin pellets(BASF Joncryl684) into a water/1,2-butanediol mixed solution to prepare an emulsion?
29 October 2023 2,745 0 View
I dissolved the styrene acrylic resin (molecular weight 1500): 1,2-butanediol = 3:5(weight ratio), added the emulsifier, and then slowly added it to the water containing the emulsifier using a...
27 October 2023 3,341 0 View
I was recently doing a Co-IP work. And I got some weird result as show in the picture, the target protein was not seen in the whole cell lysate but it was seen in the supernatant after IP. The...
30 August 2023 7,220 0 View
I simulated a copper coil in comsol, applied a pulse excitation current to the coil, and set a probe around the coil to measure the potential. I used the mef module and transient research, but it...
03 July 2023 3,955 2 View
Is it possible to prepare polymethylmethacrylate from methacrylic acid and methanol monomers?
29 May 2023 2,903 1 View
I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...
01 August 2024 9,227 1 View
Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?
01 August 2024 7,504 2 View
Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...
29 July 2024 2,229 0 View
Greeting How many events should be counted for the analysis of apoptosis with nuclear staining with Hoechst 33342 whit microscopy ? Are 100 events count sufficient and three repetitions for...
25 July 2024 7,520 0 View
I synthesised a nanocarrier by conjugation MOF (MIL-100) with folic acid for use in chemotherapy but the samples didn't dissolve completely in aqueous solution or DMSO. Instead, they only...
19 July 2024 8,522 0 View
Hello everyone, I am facing a consistent issue in my NMR spectra with an unwanted peak appearing at 1.25 ppm. This peak seems to vary with the amount of sample: it becomes more pronounced with...
15 July 2024 9,065 4 View
I am conducting free radical polymerization using Kraft lignin and MMA, with DMSO serving as the solvent and there is also an initiator. Following the reaction, I obtain a solution, but I am...
15 July 2024 9,827 1 View
I'm using Dorsomorphin (C24H25N5O) as one component in dual SMAD inhibition of pluripotent stem cells to differentiate into neurons alongwith SB431542. Now as to solubilizing 10mg SB in DMSO for...
11 July 2024 4,832 0 View
Dear Community, I would like to develop and validate a qualitative NMR method for the analysis of a specific category of chemicals, and my question is the following: What are the criteria that I...
08 July 2024 1,402 4 View