01 April 2021 3 9K Report

Is simulated distillation gas chromatography tells us the percentage of n-alkanes in our crude, or it tells the % of all compounds that boil there?

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Using OBD technique i am trying to measure laser induced shockwaves velocity i found that at start velocity increases and then decay?

i am unable to interpret why its increases in start as shown in figure

11 August 2024 2,179 1 View

Gromacs first step of minimization ?

I have face this problem anyone help me how to solve this issue ?which is below Fatal error: There are inconsistent shifts over periodic boundaries in a molecule type consisting of 78 atoms. The...

07 August 2024 2,598 1 View

"A Markov-like Model for Patient Progression"?

A Markov-like Model for Patient Progression" Markov Chain Monte Carlo (MCMC) Markov Chain Monte Carlo (MCMC) is a powerful computational technique used to draw samples from a probability...

05 August 2024 10,079 0 View

Question about combustion Kinetics ?

I am currently working on modeling FCC catalyst regeneration and have come across a point of uncertainty that I hope you can assist me with. In my previous models, I have utilized lumped kinetics...

30 July 2024 6,137 0 View

How to we see transcription activity of the bhlh79 family is at the N-terminal or C-terminal?

I'm a PhD Student. From Northwest Agriculture and Forestry University China. My Problem is this I start my work on bhlh79 transcription factor gene. I do my Y2H 5 time but the colonies appear on...

30 July 2024 1,412 8 View

How apply Kao Residual Cointegration Test in eviews?

Kao's panel cointegration tests , is there anyone willing to explain me the eviews-9 output for the Kao's panel cointegration tests?

23 July 2024 5,051 4 View

Please inform me about the International Conference on Plant Biology?

Please inform me about the International Conference on Plant Molecular Biology, or Plant Biology, scheduled for December 2024, January/February, or March 2025.

14 July 2024 3,120 7 View

Are these iPSC colonies?

I’m currently reprogramming my fibroblast cells using Simplicon RNA OKSG-cMyc TagRFP Kit and after 13 days, these colony/aggregates started to show up in all of my wells. I have 6 wells, 2 wells...

07 July 2024 9,034 2 View

Parametrize the residue (DOP) into the an .rtp entry but still did not recognize?

Hello, I have paramterize the residue namely “DOP” into both files of amino acids.rtp and lipids.rtp files of GROMOS96 53a6 force field and charmm27… respectively, although I mentioned the residue...

19 June 2024 7,562 0 View

Hello friends. Here, can someone help me in connection with hybrid circuit breakers in both ac and dc current, how to simulate different parts of the?

Hello friends. Here, can someone help me in connection with hybrid circuit breakers in both ac and dc current, how to simulate different parts of the breaker in LTSpice or PSpice? And how is the...

18 June 2024 1,486 0 View

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Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

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 you connect an HPLC to a Mass Spec only at a certain time point?

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...

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GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

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Can I use a HisTRAP column for affinity chromatography?

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

AUX gas reading problem on QE with full MS and PRM method in one run?

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

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How can I inoculate a lyophilized anaerobic bacteria into the culture medium without an anaerobic chamber?

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?

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

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

Is there a good freeware software for photodocumentation of TLC?

I need something like Camag's VisionCat software for photodocumentation of TLCs. Could you recommend something?

31 July 2024 8,415 1 View

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