Hello all, I once read in some paper that addition of tetrahydrofuran(THF) increases sharpness of peak. Can I add THF to methanol gradient for PAHs separation?
Engine oil extraction from contaminated soil,10kg of contaminated soil+20ml of dicholoromethane+? of anhydrous sulphate
01 February 2021 9,509 1 View
Researching into Knowledge Management adoption and implementation frameworks in AEC for a developing economy and have been running short of gaps relating to cost management of infrastructure...
11 January 2020 8,784 3 View
06 October 2019 8,669 5 View
I know there are double resonance experiments, mostly based on either photodissociation and fluorescence which are quite expensive. But I wonder if it is possible to do similar experiments in the...
22 January 2019 6,950 3 View
Hi Ladies & gentlemen, Does combining old (500 microlitres(400 microgram/mL) and new(400 microgram/mL)( stock 16 US EPA Mix PAH affect my calibration plot? Am NOT getting a good R squared...
27 February 2017 3,936 5 View
I have dataset that comprise of numerical and categorical scale
09 July 2013 3,747 1 View
in the detection of anomaly networks using artificial intelligence, what dataset and algorithm is advisable to make use of?
01 January 1970 5,425 4 View
The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...
03 March 2021 5,857 3 View
Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...
01 March 2021 3,867 3 View
I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...
01 March 2021 9,015 2 View
I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...
28 February 2021 4,851 8 View
i have recorded raman spectra of strontium oxide thin film. the spectra were recorded in the range 400 to 4000 cm-1. i have reference to peaks upto 1000cm-1. but i couldn't find literature for...
26 February 2021 2,499 1 View
I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...
26 February 2021 8,183 3 View
I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...
24 February 2021 363 3 View
Hi all, I am doing a genescan analysis for a deleted exon in the patient sample. The amplified region is 215 bp. In the patient sample because of homozygous deletion, no peak is observed while in...
23 February 2021 5,645 1 View
I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...
23 February 2021 2,304 4 View
We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...
22 February 2021 2,072 3 View