Journal Pre-proof Enhancement spectra resolution for spectrophotometric simultaneous determination of triamcinolone, neomycin, and nystatin based on continuous wavelet transform and ﬁrst derivative transform in commercial ointment formulation Negar Abasi, Mahmoud Reza Sohrabi, Fereshteh Motiee, Mehran Davallo PII: S0030-4026(20)31151-7 DOI: https://doi.org/10.1016/j.ijleo.2020.165315 Reference: IJLEO 165315 To appear in: Optik Received Date: 3 May 2020 Accepted Date: 24 July 2020 Please cite this article as: Abasi N, Sohrabi MR, Motiee F, Davallo M, Enhancement spectra resolution for spectrophotometric simultaneous determination of triamcinolone, neomycin, and nystatin based on continuous wavelet transform and ﬁrst derivative transform in commercial ointment formulation, Optik (2020), doi: https://doi.org/10.1016/j.ijleo.2020.165315 This is a PDF ﬁle of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the deﬁnitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its ﬁnal form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier.