What kind of data can be obtained from chromatographic retention data of compounds in different mobile phases?
Please elaborate, what kind of information is needed?
FTIR spectrum of ZnSe nanoparticles shows that its transmission is not flat around 10 micrometer but in the presented spectrum by lens companies its transmission is smartly flat. What can be the...
04 February 2024 7,817 2 View
The existing articles mainly used positivist logic and were at the first level of concept analysis (interpretation of the concept). Can someone explain the use of post-positivist logic in the...
29 April 2023 618 1 View
Hello everyone, I have a question about the carbon sequestration from less durable bio-based products (e.g., animal bedding from wood chips or straw). My goal is to measure the carbon footprint of...
14 November 2021 2,445 13 View
How to calculate correction factor from two sets of numbers?
02 January 2021 2,779 0 View
I am analyzing data obtained from a crossover study conducted on same animals evaluating the effect of two different anesthetic drugs on heart rate, respiratory rate, pulse oximetry, rectal...
28 September 2020 6,835 4 View
hi to all I have a problem in calculating texture intensity to substitute in texture strengthening formula σ = m.τ which m represented the texture intensity. I have only XRD data. is it possible...
24 September 2020 4,219 0 View
Generally, sampling sites are selected on the basis of the geoenvironmental conditions, aims of the study, ease of access, and financial resources. How can we determine a sufficient number of...
22 March 2020 9,481 9 View
What are the reasons for a significant negative correlation among heavy metals such as Cadmium (Cd) and Lead (Pb) with fecal coliform, BOD, NO3, and PO4 during the wet period?
10 March 2020 6,692 12 View
I need to compare two different suture patterns for canine small intestinal anastomosis. I would like to perform microangiographic study apart from other evaluation methods. I would appreciate if...
08 October 2019 2,987 1 View
We are working on a new compound for Alzheimer disease and use THP-1 cell line and Amyloid beta 1-42 from US peptide as stimulator. Since, US peptide does not provide this Amyloid beta anymore we...
08 November 2018 7,564 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
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 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'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
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
After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...
05 August 2024 9,637 2 View