[Ifeffit] XANES-Linear Combination Fitting (LCF) Au standard sample

Hi, All I am recently learning to use XAS to characterize some Au mixture solution samples. I would like to study the chemical valence by XANES. Unfortunately, I have only gotten Au foil data. Could I use the standard data from literature like [AuCl4]-, [AuCl2]-, Au hydroxide etc? Best regards, Yu