CG-MS column analysis type ?

14 May 2020 0 4K Report

What type of GC-MS column is needed for the analysis of chiral sterioisomers (make and type of stationary phase)?

Badges
Science topic

Similar topics
Analytical Chemistry
Column

More Lassaad Hedhili's questions See All

Strain values with NLGEOM option (Shell in large bending)?

Dear all, When turning on NLGEOM option of Abaqus, I obtained unequal magnitudes of top and bottom strain components from the same shell element S4R. This element is part of a thin plate modeled...

23 January 2017 3,164 3 View

NLGEOM ON (ABAQUS) - Shell in large bending ?

Dear all, When turning on NLGEOM option of Abaqus, I obtained unequal magnitudes of top and bottom strain components of the same shell element S4R. Is such result relevant, any explanation or...

02 January 2017 4,979 3 View

Bending of epoxy fiber-reinforced laminate: mechanical behaviour ?

I obtained a non linear (bi-linear) behaviour (force vs displacement) for an epoxy fiberglass laminate plate (150x150x1.8 mm3) which is subjected to out-of-plane controlled displacement from its...

06 November 2016 2,603 6 View

The recent publications about channel estimation (wireless system) using neural network ?

Hello, I am looking for the recent works, thesis and publications that deal with channel estimation (wireless system) based on neural network. Thank you

11 March 2015 5,230 3 View

Can anyone suggest an adaptive "project-based organization" measurement scale?

"project-based organization" measurement scale

05 January 2015 1,467 5 View

What are the long-term consequences for the Covid-19 survivors ?

Some of the first people who got the coronavirus and recovered from it have only been in good health for a few weeks. It is therefore not yet known what the long-term consequences of a serious...

01 January 1970 2,477 4 View

Researchers create new proteins by combining machine learning and music

Amino acids, the basis of proteins, each emit a unique vibration. Researchers started from this observation to transform these vibrations into real musical scores. These data then made it...

01 January 1970 2,579 3 View

Chlororoquine Vs SARS-CoV-2

Recent publications have brought attention to the possible benefit of chloroquine, a broadly used antimalarial drug, in the treatment of patients infected by the novel emerged coronavirus...

01 January 1970 5,654 7 View

CV traking systems

How can we measure the reliability of algorithms used in candidate tracking systems?

01 January 1970 8,545 0 View

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...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

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

08 August 2024 7,403 2 View

RNA Extraction Using Hot Borate Method No Longer Working?

I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...

08 August 2024 9,882 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

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

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

Hi, please what is the best tool on Aspen plus that can help me get the best inlet temperature and pressure for cryogenic distillation?

I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2...

06 August 2024 4,611 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