How to get regration 0.99999 in UV spectroscopy please suggest some steps to to get regration 0.99999 ?

I try to get regration 0.9999 but i unable to get regration value more than 0.9389 i just need regration value 0.9999please suggest some steps to get that perticular regration value

13 May 2023 7,687 4 View