Journal Pre-proof Simultaneous measurement of hydrogen carbonate and acetate anions using biologically active receptor based on azo derivatives of naphthalene Fatemeh Parchegani, Masoumeh Orojloo, Mojgan Zendehdel, Saeid Amani PII: S1386-1425(19)31316-2 DOI: https://doi.org/10.1016/j.saa.2019.117925 Reference: SAA 117925 To appear in: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Received date: 22 September 2019 Revised date: 1 December 2019 Accepted date: 6 December 2019 Please cite this article as: F. Parchegani, M. Orojloo, M. Zendehdel, et al., Simultaneous measurement of hydrogen carbonate and acetate anions using biologically active receptor based on azo derivatives of naphthalene, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy(2019), https://doi.org/10.1016/j.saa.2019.117925 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. © 2019 Published by Elsevier.