provide detail information on the peaks m/z 91, 107, 77, 41 for ibuprofen drug GC-MS
Our project is on transcriptomic sequencing of fish brain tissue at different salinity conditions. After isolating the total RNA, we did Bioanalyzer. We got no RIN value and the peak pattern was...
28 March 2022 6,304 1 View
I am heating the PEG 600 at 60 degree C with mixture of sodium mono carbonate and water to make gel out of it, but after heating @ 60 C for 2 months PEG molecules are forming CLUMPS and...
20 July 2020 6,494 0 View
I am using HEC RAS (Though it is a river analysis software) to an urban area to connect various ponds and lakes in the city and perform flood inundation mapping. What is the suitable...
01 February 2016 4,626 6 View
Dear RG members, I have a doubt in my derivation of Bessel functions and modified Bessel functions of asymptotic expansions in the limit zero. When I derive the asymptotic expansion of...
26 January 2016 1,991 4 View
I have purified a GST tagged protein from inclusion bodies of bacterial expression and after the purification (but not eluted), immediately, I run SDS-PAGE and I saw the band for my protein. Next...
20 July 2015 8,296 6 View
Different types of cracks may appear in the walls i.e. vertical cracks, horizontal cracks etc. What are the reasons for each type of cracks?
14 January 2015 920 8 View
Glasses with certain composition of different chemical compounds forms in a specific range only. Beyond the range it will be difficult to form the glass in normal melt quenching. is there any...
18 November 2014 231 4 View
It is difficult to find the exact absorption edge for my UV-Vis spectrum as it is having wide hump in the UV region. Then how to estimate the absorption edge?
03 August 2014 9,256 4 View
What is the phenomena for the glasses to possess both direct and indirect band gaps?
21 April 2014 2,596 4 View
During synthesis of glasses I get samples with opaque structure. I need to measure the refractive index of that samples in visible or infrared region. What is the method that can be used to...
02 April 2014 1,667 10 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
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 experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 View
I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...
08 August 2024 8,329 0 View
I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...
07 August 2024 505 3 View
I am experimenting with cancer and non-cancer cells in a 12-well plate for 4 days with a seeding density 1*10^4/well, however, I noticed that the control group growth rate slows down on D3. Should...
07 August 2024 2,283 2 View
Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...
06 August 2024 4,953 0 View
Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?
06 August 2024 980 5 View
There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...
05 August 2024 4,945 3 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