33 Questions 47 Answers 0 Followers
Questions related from Mel Gibson
Curious about your research experiences. Ideally this is for ESI-QTOF electrospray ionisation. This will differ based on type of columns and equilibration as per dimensions, flow rate and size of...
10 October 2017 5,558 6 View
ChemDraw takes time to learn which I will give later on. I tried image enhancer online for increased sharpness but that did not work. This is a time saving measure to overcome this challenge....
09 September 2017 9,450 5 View
Not to use complex imports of journals because of the file uploads. IEEE format in Word good but cites authors by numbers not text?. Can I change this to suit my needs as I need Harvard...
09 September 2017 9,414 6 View
For me cite them right website for referencing got lab reports done easy with references. Learned web of science makes results so narrow and easy to find. Google scholar let me find cited articles...
09 September 2017 6,064 2 View
Interested in packing columns techniques and testing the quality of packing columns. Youtube videos, ppts would be good. Even podcasts and the journals.
09 September 2017 4,988 0 View
Anal Chim Acta. 2017 May 15;967:12-32. doi: 10.1016/j.aca.2017.01.060. Epub 2017 Feb 7. Recent advances in stationary phases and understanding of retention in hydrophilic interaction...
09 September 2017 8,769 6 View
I read in Mass spec literature that buffer combinations are attempted. Are they only for gradient elution. Does this need mass spec to ionise the buffered solvent effectively. Will this cause the...
09 September 2017 788 4 View
Interested in newer mass spectrometry technologies that have been developimg or are under development. New mass spectrometry columns that perform very well with mass spectrometry. Can mass...
09 September 2017 9,280 0 View
This situation can be applied to 2D chromatography. If there is a T-piece can two To void volume markers be used to measure that volume for sample to reach the detector. Some research applies...
09 September 2017 10,091 5 View
Preferably free.
09 September 2017 6,041 0 View
Just wondering about their expense to make. Does liquid propulsion cause excess interference in IR?. A multifunctional HPLC that checks for impurities would be more valuable. Does the liquid...
09 September 2017 7,560 5 View
Which methods are the fastest and easiest to do to save time. The LC-MS is broken for now and awaiting repair otherwise I would fragment the impurity with different m/z ionisation. In the...
09 September 2017 7,226 2 View
LogP
09 September 2017 827 5 View
the water layer would have formed using 85%. Is the same amount of water layer formed by each acetonitrile %.what I am asking is for 97% if I equilibrat for 2 hrs then can I equilibrate for 30 to...
09 September 2017 7,405 11 View
,Tried 3% water layer but equilibration time is time consuming. Analyte had a curved out looking shape such as an upside boat that continued for 2minutes to reach the baseline. steep then smooth...
09 September 2017 4,739 9 View
Zotero? Mendeley? F1000 workspace?. Any citation formatter for use within Ms word. MS word referencing does not input et al into citations hence its almost useless.
08 August 2017 3,499 12 View
How are they related to anthraquinone, anthracine.
08 August 2017 8,488 1 View
Looking for more Qs and topics. Expand
08 August 2017 8,514 10 View
Searching patents will avail new references making literature search and write up objective and knowing concepts and methods means the chemistry research will always be new and at its best.
08 August 2017 7,327 1 View
Relevant to small molecules if possible by chromatography such as for quinolones, phenazines, analgesic compounds.
08 August 2017 671 0 View
This research is often more direct, less worded and objective compared to some academia journal articles that don't contain as much flawed results often outside of supplementary information....
08 August 2017 2,652 1 View
This is to facilitate easiest searches of for example fundamental small molecules or large molecules presentations; making chemistry knowledge easily findable, accessible and increasing beginners...
08 August 2017 886 0 View
I know benzene rings in tryptophan at 280nm give the absorption so is this the only criterion for a molecule to possess a chromophore?. Or do the functional groups play a pivotal role along with...
08 August 2017 411 6 View
Along with which virulence factors produced during that biofilm transition stage from the planktonic cells. Its good that it was found that cells experience shear stress and flow for formation of...
08 August 2017 4,051 6 View
My peaks have a slight peak tailing so half height or half width is appropriate but do I use R = (RT1 - RT2) / [0.5 * (W1 + W2)],...
08 August 2017 5,597 7 View
I do not understand if pyocyanin is a betaine compound (alkaloid group family being zwitterionic at neutral state) then how is it also a phenazine compound?. Is pyocyanin secreted by plants that...
08 August 2017 7,276 2 View
Agilent recommend
08 August 2017 10,055 19 View
Analytes to be prepared in 85% ACN with 15% deionised water. pH 5 ammonium acetate. Mobile phase buffered same way. I tried amm. formate at same pH. I tried formic acid liquid buffering medium but...
08 August 2017 5,478 4 View
"A properly designed guard column does not deteriorate the separation. As a matter of fact, a well designed and well packed guard column using the same material as in the analytical column is a...
08 August 2017 2,918 17 View
The Boron doped diamond electrode is very sensitive. I need to know how hplc uv DAD compares so that I can perform easy Limit of detection testing without making up too many samples, and even...
08 August 2017 8,749 5 View
For small molecule HPLC and LCMS method development of small molecules in general. Any suggestions. Not on Mendeley online. Or on researchgate topics.
08 August 2017 8,612 1 View
I want to try basic conditions for LCMS in negative mode to try to satisfy the different pKa values of my 5 analytes which gear towards acidic and basic. pH5 is fine but the basic analytes can...
08 August 2017 1,583 5 View
I tried the offset function but it is quite complex. I have 60,000 rows of data from UV detection. I need to offset downwards by +1 for all of them so that only y axis of graphed chromatogram(s)...
08 August 2017 5,266 1 View
