6 Questions 7 Answers 0 Followers
Questions related from A Waheed Ahmed
Hi, Just curious to know that in chromatography, a chromatogram should be zoomed to what scale? 10 times of output , 50X or ..? Is there any regulation or general chapter which describes this?...
04 July 2024 3,284 6 View
Hi, Can someone please suggest me a good diluent for the MCC (microcrystalline cellulose)? Further, I am looking for your valuable input, either based on personal experience or backed by strong...
31 July 2023 8,184 3 View
Dear Seniors, and scientists, Can someone please guide me that why International Unit (IU) of activity for vitamin A are replaced by Retinol Equivalent Activity (REA)? Why it's Retinol and not...
19 December 2022 4,030 1 View
Hi, May I have the guidance of concerned seniors about the following commonly used detectors in HPLC? I will sincerely appreciate it if you can shed light on their terminology, shortcoming, and...
12 December 2022 1,986 6 View
Hi, I started working on the analysis of multivitamins in Gummies by HPLC using DAD. Unfortunately, I don't find enough supporting material about the project. If someone has already worked on the...
07 September 2021 1,865 5 View
Hi, I am working on the extraction of an extremely polar compound. Many journals have suggested use of cellulose powder for column chromatography using 1-butanol saturated with water as eluent....
25 May 2021 7,954 4 View
