In XPS analysis of GO films. How I can use the sample work function method to know the information of XPS binding energy scale is referenced ?

Note that aligning the spectra to the C 1s peak of adventitious carbon is a highly risky procedure and was recently shown to lead to unphysical results. Therefore, I strongly suggest to avoid it....

18 November 2020 5,483 4 View

Dear Doctors/Professors, i would like to ask if a novel drug would be tested in animal model in mice which range of doses do i use first ?

Dear Doctors/Professors, i would like to ask if a novel drug would be tested in animal model in mice which range of doses do i use first ?

03 August 2020 3,811 3 View

When I injected it into the LCMS all the chromatogram peaks are small lthough I have increased the concentration?

I have a metabolic extract from a plant, when I injected it into the LCMS all the chromatogram peaks are small, although I have increased the concentration several times but there is no change in...

12 March 2020 3,047 2 View

How can I do the Magnetic calculations using CASTEP code as ferromagnetic system , anti-ferromagnetic system ?

with a CASTEP

01 February 2020 1,612 4 View

Why the PEST doesn't run with negative head values?

Hello in my GMS model > i ran the model foreword first the calculated head had some negative value then i started calibration using PEST but it stops and does not work or do any...

24 December 2018 3,810 3 View

Can anyone help with book, essay or research papers about this topic '' Methodology and problems of modern veterinary medicine '' ?

inary medicine ? Thanks in advance

15 December 2018 2,466 2 View

What characteristics should I extract from the image ?

What characteristics should I extract from the image and what type of classifier should be used to classify human spermatozoa according to their morphology? This is part of the realization of a...

25 September 2017 8,832 5 View

Is there a super resolution technique based on a single image?

Is there a super resolution technique based on a single image and exploiting the geometrical and textural characteristics of the objects present in the image?

25 September 2017 5,651 3 View

Is there any experimental study of the turbulent multiphase flow (air + sand) around aerodynamics obstacles ?

Dear all,I am looking for any work concerning the Experimental study of the turbulent multiphase flow (air - sand) around any aerodynamics obstacles (cylinder, vehicles, wind turbine blades...

20 January 2017 2,025 2 View

Can mineral oil interfere with fluorescence reporting in RT-PCR?

02 June 2016 2,058 4 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Why ICP-MS test for Teflon filters that collected PM2.5, show really high results in the millions of ug/g ?

I analyzed soil and ash samples using ICP-MS for 28 metals, then I resuspended those samples to collect PM2.5 particles in a filter using a selective inlet inlet. My only issue that Fe and Al...

13 February 2021 7,592 3 View

What influences inter-day reproducibility in UPLC-MS/MS analysis?

I was analyzing some metabolites in human plasma. While the intraday precision of these metabolites was acceptable ( less than 20%), the interday precision was quite large. So what influences...

13 February 2021 9,183 9 View

How do I prepare and store insect samples for JH measurements?

I need to preserve termite samples for future quantification of juvenile hormone in their bodies. Or extract the Juvenile Hormone and keep that samples stored for future quantification. I may need...

09 February 2021 1,995 1 View

MS/MS protein analysis?

Hi Everyone: I want to quantify the relative amount of a protein in 2 samples. I will first digest the sample with trypsin, and subject the resulting peptides to LC-MS/MS analysis. I will then...

25 January 2021 8,333 3 View

2.6 Drying gas flow controller cannot regulate the requested setting after a fixed amount of time?

We keep getting this error on our Agilent 6470 TQ. We were told it could either be our N2 generator or filter traps. We've called the manufacturer of our generator and they believe it's working...

21 January 2021 2,969 1 View

How to distinguish pure and adulterated honey using NMR spectroscopy?

What are the common adulterants in commercial honey? how to identify pure honey and adulterated honey with the help of NMR spectroscopy? Is there any other technique to check purity of honey?

20 January 2021 5,456 12 View