I am using Porapak-Q column on TCD and could not detect less than 0.3M.
try this link
http://science24.com/paper/31031
Method of seed priming
16 June 2024 8,698 2 View
Quantative estimation of energy balance, water balance and co2 fluxes during various stages of crop
12 March 2024 7,490 0 View
In a 4x4x1 supercell of MoSeTe containing 16 Mo atoms, I aim to substitute two transition metal atoms (e.g., Fe) in place of Mo atoms. How do we determine the most favorable doping sites within...
09 February 2024 677 0 View
How to calculate the magnetic anisotropy energy for 2D materials using the VASP code? I am slightly confused about setting MAGMOM tag in step 2 (that is given in VASP tutorial)
02 January 2024 7,900 1 View
In our compound we have oxygen and fraction of oxygen is not accurate. What is region behind it?
12 March 2023 864 1 View
I currently work on YBCO superconductor and wants to dope a Rare Earth element in YBCO so I want the order of critical current density in YBCO for best results. Thankyou
08 February 2023 1,885 0 View
I want to calculate CFU/mL of Pasteurella multocida from OD 600.
26 September 2022 7,511 0 View
I am trying to discretize a biatomic continuous solid into equivalent spring-mass system...but I am getting different dispersion curves for the two cases. So now I ma in doubt weather it is even...
18 September 2022 3,023 1 View
I wanted to give simultaneous horizontal and vertical seismic ground motions to my Abaqus model. Can anyone suggest how to do it?
12 June 2022 3,351 4 View
I have rubber specimens of shore A hardness 20. I want to know the youngs modulus and the shear modulus of the same. Can anyone suggest to me relevant standard codes for doing so?
15 March 2022 7,719 2 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 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
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 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
Palmitic acid presence in aqueous fraction
05 August 2024 8,624 4 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
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View