A Waheed Ahmed

5 Questions 5 Answers 0 Followers

Questions related from A Waheed Ahmed

Is there any guidelines about zooming out a chromatogram?

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 3,086 6 View

HPLC Analysis of Cellulose mainly HPMC, MCC and CCS etc?

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 8,152 3 View

Why IU is replaced with Retinol Equivalent Activity?

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 3,991 1 View

Need guidance about different kind of detectors used in HPLC?

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 1,949 6 View

Multivitamin analysis in Gummies by HPLC?

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 1,831 5 View