UV-spectrophotometer analytical method for doxycycline hyclate and tylosin tartrate powder [closed]








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I am trying to detect tylosin tartrate from the mixture of doxycycline hyclate using $\pu{0.01 M}$ $\ce{HCl}$ as solvent, and waveleghth of $\pu{290 nm}$ for detecting tylosin tartrate in UV-spectrophotometer but the method fails 


The aim is finding an analytical UV-spectro photometer method to detect tylosin tartrate in mixture of doxcycline hyclate ?


