B12, food fortification, analytical chemistry
See these answers (or lack thereof).
https://www.researchgate.net/post/How_to_determine_Vitamin_B12
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A quest for skills of a good biochemistry lecturer.
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I have a salt sample with 0.24ug/g of vitamin B12. I want to quantify the amount of B12 in the sample. This is too small to be detected by UV-Vis Spec and the high salt concentration and other...
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I am currently working on LncRNA; to know the lncRNA-protein interactions I want to do RNA pull down assay, so I need to design primers with T7 promoter. I need assistance in this regard.
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Hi all! My thesis groupmates and I are working on purifying an E. coli bacteriophage. The phage was handed down to us by the previous thesis group, but they only managed to purify it to about...
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Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....
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when we grow biofilm in test tube, the pipette often do not reach near the content. so we have to decane it directly or use a smaller test tube.
17 July 2024 3,532 0 View
I'm currently using Roche anti-DIG-AKP Fab fragments to perform Southern Blot assays, but this reagent is delayed since november last year. It's anybody facing the same problem? If so, how are you...
15 July 2024 6,668 0 View
What techniques or assays will be used when a purified lyophilized powder is purchased from a company to study protein-protein interaction?
15 July 2024 1,598 3 View
Studying a specific monogenetic disease based on mutations in different individual genes. I try to recreate the disease phenotypes of donors in vitro. I knocked out a gene x with above 90%...
12 July 2024 6,313 0 View
Hello everyone! I am currently working on the expression and purification of an antimicrobial peptide that experiences reduced activity after each freeze-thaw cycle. To improve its stability, I...
10 July 2024 6,830 1 View
Hi, I would appreciate professional and technical insights regarding primary cell culturing. I've been working on optimizing my primary cell culture, and while it is successful at times, there are...
10 July 2024 4,918 2 View
Hello everyone, I'm working with a PA-1 ovarian cancer cell line xenograft model in female nude mice. My cells are at 372 passages, the cell repository bank themselves gave at 352th passage....
05 July 2024 5,860 1 View