Greetings,
May someone make a suggestion where I can get the standard of carpaine compound (usually extracted from the carica papaya) for my HPLC study? Thanks
This link lists some vendors:
https://pubchem.ncbi.nlm.nih.gov/compound/Carpaine#section=Entrez-Crosslinks
See section 6.
hello, see the link below:
https://www.chemscene.com/3463-92-1.html
http://www.tandfonline.com/doi/pdf/10.1080/10942912.2014.900785
Thank you so much all of you. I have received a few quotation for the item with the recommendation provided. Thanks a lot!
Hi Wan,
You may make an inquiry at Alfa Chemistry, they offer kinds of good-quality chemicals.
https://www.alfa-chemistry.com/inquiry
Write a reflective essay on the importance of teacher involvement in curriculum development
15 June 2024 4,240 7 View
Hello. I am new to cell culture work. May I know whether these small black dots are contaminants or just cell debris? It's quite confusing because they are not moving. This is different from the...
02 May 2024 8,479 1 View
As known, the spin exchange coupled Mn4+ leads to a narrowd singal, at ca. g=2.006 with the line width about 500 gauss. Why the birnessite MnO2 dispalys such wide spectrum? Is any other exchange...
23 April 2024 6,351 3 View
The silver wire has been used as a reference in an organic electrolyte in many artcles. What is the standard electrode potential of the silver wire reference electrode and how to calibrate its...
14 April 2024 8,052 3 View
I am planning to conduct a qualitative study that basically aims to develop the Sustainable Development Goals (SDGs) Literacy Framework for the Agriculture Curriculum. The framework will explain...
10 September 2023 6,399 3 View
Dear Experts, I would like to know is it possible to generate a cancer cell line (which is HLA-A:02 negative) to be HLA-A:02 positive by stably overexpressing HLA-A:02 gene into the cell line,...
21 August 2023 3,580 0 View
To analysis the response and mechanisms of cardiomyocyte hypertrophy, our team tried to induce hypertrophy by adding adrenergic agonists to the medium of neonatal mouse cardiomyocytes. And...
06 June 2023 3,725 1 View
Previously, I used Frank formula D=b/2sinA to determine. For example, D=a*(z1*z1+z2*z2+z3*z3)/sqrt(z1*z1+z2*z2+z3*z3), where z1-z3 is the crystal orientation along GB normal z. This is successful...
06 April 2023 5,848 1 View
Hello, My name is Wan. My focus research area is on Battery chargers. I would like to know the part for Constant Current charging. As i have done a simple circuit for the cut-off battery charger...
29 March 2023 4,562 3 View
Pluronic F127 Critical micelle concentration CMC at various temperatures
20 March 2023 4,138 0 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 have been doing the m6A dot blot for a while with no improvement, I am extracting the RNA, and I can see the dots although the three biological replicas give a different reading on the memberan...
10 August 2024 8,539 5 View
How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?
09 August 2024 7,718 0 View
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 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 would like to understand potential safety concerns while handling SEB in the lab. Especially while working in animal house facility. Would like to know precautions for handling. Sigma MSDS...
07 August 2024 6,034 3 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
Are there any suggestions or insights you can provide to help address this problem
06 August 2024 1,443 2 View
How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?
06 August 2024 9,618 3 View