I'm planning to run GC analysis but having difficulties on:
1. whether to use internal standard or not and which one will be best for cyclic carbonates detection
2. How to chose the best capillary column
The selection of the proper capillary column for any application should be based on four significant factors: stationary phase, column I.D., film thickness, and column length.
it depends, for me i use Propanol as internal standard on quantitative determination of ethanol in biological matrices,
I am conducting a scale adaptation study on Amos. However, I am unable to validate the main model, which I attribute to the fact that several items are meaningless in our culture. The scale has a...
14 June 2024 4,344 5 View
I have prepared a map of a country using ggplot (R studio) and zoomed in Regions, zones, and a town. I want the three study sites to appear on the map(town). I have separate longitudes, latitudes,...
06 May 2024 9,418 1 View
I have observed a notable trend wherein individuals from diverse fields are transitioning towards domains such as data science, data analytics, and machine learning (ML). Concurrently, there is a...
28 April 2024 5,869 2 View
I wrote a mathematical optimization model on wastewater treatment systems, but after running the model i got the above error.
22 April 2024 4,688 0 View
As a modern and digital teacher, how can you identify and evaluate them for usage in teaching and learning process
19 April 2024 1,218 1 View
Hi respected colleagues! While trying to form a second union of domains components in a 3D COMSOL model, I was met with the the response "Error while building 'Union 2' in Geometry: Boolean...
07 April 2024 863 5 View
Research
16 March 2024 766 4 View
16 March 2024 4,296 5 View
Typhoid fever has no animal models. However, recently, some mouse models have been reported
29 February 2024 9,679 1 View
a person with whom I share the first and last names was able to insert his middle name replacing my middle name initial on my publications and lis all on your site
04 February 2024 3,129 1 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
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
I need a very narrow glass capillary for my research. How can I make a glass capillary with an inner diameter of around 200 to 500 nanometers?
08 August 2024 8,915 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 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
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
For people today, the enigma of the size of the proton still remains enigmatic. However, being myself a researcher in new physical theory which makes it possible to extend the different standard...
28 July 2024 7,823 1 View
Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...
26 July 2024 3,460 2 View
Hello everyone, I am currently working on a protein that is 10x his-tagged and positively charged (predicted pI=10.16). But when I tried to use Ni-NTA column to purify the protein, it's not...
24 July 2024 7,293 4 View