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 knowledge of such chromatography method development.
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...
09 October 2017 5,600 6 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...
08 September 2017 7,441 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...
08 September 2017 4,792 9 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...
08 September 2017 8,806 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...
08 September 2017 6,102 2 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...
08 September 2017 834 4 View
LogP
08 September 2017 869 5 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...
08 September 2017 10,129 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...
08 September 2017 7,261 2 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...
08 September 2017 7,592 5 View
Approximate concentrations are require in compared with the WHO permissible limts
11 August 2024 2,723 1 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.
11 August 2024 9,101 4 View
Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...
11 August 2024 8,141 3 View
Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...
10 August 2024 4,005 2 View
I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...
10 August 2024 7,429 2 View
Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...
09 August 2024 5,444 7 View
May members post flyers about opportunities to present at a conferehttps://veraeducation.com/nce? If so, where to post for the Virginia Educational Research Association? https://veraeducation.com/
08 August 2024 4,585 1 View
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 View