UV-VIS SPECTROSCOPY: Can anyone please help me find A(1%,1cm) reference data for common medicines?

24 December 2018 1 9K Report

Hi,

I am looking for A(1%,1cm) UV-VIS Spectrophotometer reference data for commonly used medicines - such as Metformin, Aspirin and other common medicines. Is there a reference table that is available?

Secondly, does the A(1%,1cm) vary depoending on the solvent used? - for some medicines I see some use Water and some use ethanol?

Alva Rosqvist

Also a follow up please.

I am trying to check the efficacy of some medicines using a UV-vis 1280mini spectrophotometer. Can A(1%,1cm) figure of 798 at 232nm for metformin be used with reasonable accuracy in place of a Reference powder sample to answer the question - Does this Metformin 500 Tablet contain broadly 500mg of Metformin?

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