Accepted Manuscript Analytical Methods Low cost in situ digital image method, based on Spot testing and smartphone images, for determination of ascorbic acid in Brazilian Amazon native and exotic fruits Vagner Bezerra dos Santos, Emelle K.N. da Silva, Larissa M.A. de Oliveira, Willian Toito Suarez PII: S0308-8146(19)30246-8 DOI: https://doi.org/10.1016/j.foodchem.2019.01.167 Reference: FOCH 24262 To appear in: Food Chemistry Received Date: 11 April 2018 Revised Date: 21 January 2019 Accepted Date: 25 January 2019 Please cite this article as: dos Santos, V.B., da Silva, E.K.N., de Oliveira, L.M.A., Suarez, W.T., Low cost in situ digital image method, based on Spot testing and smartphone images, for determination of ascorbic acid in Brazilian Amazon native and exotic fruits, Food Chemistry (2019), doi: https://doi.org/10.1016/j.foodchem.2019.01.167 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. 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.