Can I run solvent free reaction using biotage microwave initiator?

More Duc-Duy Vo's questions See All

Figure plot in scientific articles?

Hi all, Do you know how to plot this figure? I found many of them in Nature journals but have not figured out how to make them. Which software/tool do you suggest? Thank you very much.

15 July 2024 8,384 2 View

Linear Mixed-Effects Modeling or Mixed Models for Logistic Regression ?

I really want to learn about I really want to learn about Linear Mixed-Effects Modeling in SPSS or Mixed Models for Logistic Regression in SPSS. Can you show me: 1. Theory of those two models 2....

13 March 2024 7,819 5 View

Why do i get two peaks on my HPLC run?

Hello all i have a problem. I recently got a new RP-HPLC column with a guard column as well, after connecting them and starting the first runs i noticed that my sample (70% purity) elutes into two...

31 July 2023 226 17 View

HPLC Chromatograms gets worse, what could be the reason?

Hello fellow researchers, i started to run several HPLC methods to quantify an enzyme activity. I incubate my Enzyme (different mutants) with my substrate (futalosine, quite hydrophobic). To...

21 June 2023 4,194 5 View

Different retention times of the same substrate within an enzyme reaction and without, what can be the reason?

I am currently running an HPLC to quantify the activity of my enzyme. I incubate it with my substrate which shows a peak corresponding to its product and also the substrate peak which wasnt...

19 April 2023 303 3 View

Why does not Tungsteng electrode in TIG welding melt during welding?

The melting point of Tungsteng electrode is about 3400 celsius degree. The arc temperature in TIG welding is about 6000 degree celsius. So, Why does not Tungsteng electrode in TIG welding melt...

30 October 2022 9,668 3 View

Serine Residue deprotonated at a pH of around 7, what can be the reason?

Hello all, i work on a protein which is a hydrolase and after experiments including pH titration via NMR we discovered, that one serine residue (in the active site) deprotonated at a pH of around...

16 October 2022 4,182 0 View

How to estimate mass of casting with gating system?

In gating system design, the fist step is to calculate the optimal pouring time as: t=K(1.41+T/14.59)√W where, K: fluidity factor T: average section thickness (mm) W: mass of casting with gating...

22 June 2022 241 3 View

How to deal with problem: single probe represent single probe represent multiple genes ?

Hello everyone! I'm doing microarray analysis with data GSE10474 about sepsis. i got gene expression matrix, but when mapping the probe to gene symbol i got struggle in some probe is represent...

19 May 2022 2,834 0 View

Colon Fibroblast Culture Protocol?

I am culturing CCD18Co colon fibroblast with DMEM + 10% FBS + 1% P/S. I used DMEM with 0.5% FBS on the subculture day and replace it with 10%FBS on the following day. However, our lab members...

17 October 2021 6,640 0 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

People weight in Oaxaca Blinder Decomposition on R?

Hello guys! Do you have experience running a Oaxaca-Blinder decomposition on R applying person weights. How do you suggest doing it? I have a variable PERWT which gives more information on how...

04 August 2024 6,033 0 View

What should be the sample container for the hydrothermal reaction in a microwave reactor at 180 °C for 10 min at the heating rate of 5 °C per minute?

Suggest one of them 1. Teflon-lined stainless steel autoclave: 2. Alumina (Al2O3) ceramic container

30 July 2024 7,326 1 View

How to perform EEG source analysis on each trial of data separately?

Hello Everyone I have a question about structure for connectivity analysis on sources. My goal: preprocess and cut data into trials create headmodels, using template MRI file perform source...

30 July 2024 2,744 1 View

How to add Cr parameter in autodock?

When I run autogrid4 it says: autogrid4: ERROR: Unknown receptor type: "Cr" -- Add parameters for it to the parameter library first! Look forward to your reply.Thank you so much!

29 July 2024 488 0 View

Why running a restart analysis in Abaqus in Ubuntu OS gives an error as attached when running the same job in Windows doesn't give any error and runs?

I am trying to run a restart analysis, which imports deformed configurations of parts from a generated ODB file. It runs fine in Windows OS but when I try to run it in Linux OS, it is giving some...

29 July 2024 9,572 3 View

How to use Desmond in HPC ?

Our department has recently acquired an HPC (High-Performance Computing) system, and I'm thrilled to take my molecular dynamics calculations to the next level using Desmond. I used to run my...

28 July 2024 6,553 1 View

How do I run a dead well test for a QuantStudio 5 qPCR machine?

I am preparing to run a lot of samples on a 384 well plate and I wanted to test if any well in my PCR machine is dead so as not to lose any data. I would really appreciate help with how I can do...

24 July 2024 8,172 1 View

VECM Model: Positive/insignificant CointEq1 ?

Hello everyone, I am conducting

22 July 2024 8,085 11 View

Merge Intensity Data from 2 runs?

Hi, We have collected several images for two independent runs of an experiment using two different confocal microscopes and settings. Thus, the intensity values collected through ImageJ were...

22 July 2024 8,722 0 View