This is based on a classic paper and method. Biochim Biophys Acta. 1952 Mar;8(3):302-9. The measurement of lysozyme activity and the ultra-violet inactivation of lysozyme. SHUGAR D.
Sir I have tried to find the full text of Shugar D., but I couldn't.
I have found some formulae at Worthington Manual, but it is not helping either. it will be a great favour if you could help in letting me know the formulae.