TCL-S-101
Which is the best method to determine water content like oven ? Karl fischer ? Or any other?? Plz suggest. Because sample preparation looking critical to determine water content of gummies by...
02 March 2017 2,095 3 View
How to select proper mobile phase additive for better separation? And when to use the beta-cyclodextrin or (2-hydroxypropyl)-beta-cyclodextrin as mobile-phase additives?
07 August 2013 6,535 1 View
Can I replace sodium metaperiodate with potassium metaperiodate for analysis of Mn by COLORIMETRIC tech.? Will it affect the results or assay of Manganese? Or will it interfere with colorimetric...
05 June 2013 7,112 6 View
I want to quantify Potassium Iodide but I'm not getting a reliable chemical or any other method for assay.
01 February 2013 7,640 1 View
I want to plot overlay of rphplc three std chromatograms in empower III software in a one final result sheet with area, resolution, HETP & tailing factor. How do I do that?
01 February 2013 4,230 0 View
What is the method to differentiate the 2%, 10%, 20% malt extract?
01 February 2013 2,824 1 View
I have HPLC with UV detector & I want to quantify amino acids by RPHPLC, what is the best method with derivatization technique?
31 December 2012 3,195 33 View
Dear all today I faced a problem while making mobile phase and the composition was A)potassium Dihydrogen phosphate(15g) + Di-sodium hydrogen phosphate(15g) in 1000ml water B) Acetonitrile...
31 December 2011 7,053 20 View
dear all today I was carrying out assay of ALA granules in Magnesium oxide. I dissolved. granules in the glacial acetic acid but only 60% release I achived. then i tried in H2SO4 but the ALA...
31 December 2011 9,504 3 View
Could you recommend some articles on Urban Transportation System optimization and Innovation?
13 August 2024 2,595 3 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, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
I am using Rhodamine6G as gain medium and silver nanoparticles as scatterers on a microscope slide and laser input 532 nm comes from above.
09 August 2024 9,894 2 View
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 View
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
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
A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.
07 August 2024 5,307 1 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
