Accepted Manuscript Title:DETERMINATION OF OPIATES IN WHOLE BLOOD USING MICROEXTRACTION BY PACKED SORBENT AND GAS CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY Authors: Margarida Prata, Andreia Ribeiro, David Figueirinha, Tiago Rosado, David Oppolzer, Jos´ e Restolho, Andr´ e R.T.S. Ara´ ujo, Suzel Costa, M´ ario Barroso, Eugenia Gallardo PII: S0021-9673(19)30526-6 DOI: https://doi.org/10.1016/j.chroma.2019.05.021 Reference: CHROMA 360241 To appear in: Journal of Chromatography A Received date: 10 December 2018 Revised date: 7 May 2019 Accepted date: 12 May 2019 Please cite this article as: Prata M, Ribeiro A, Figueirinha D, Rosado T, Oppolzer D, Restolho J, Ara´ ujo ARTS, Costa S, Barroso M, Gallardo E, DETERMINATION OF OPIATES IN WHOLE BLOOD USING MICROEXTRACTION BY PACKED SORBENT AND GAS CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY, Journal of Chromatography A (2019), https://doi.org/10.1016/j.chroma.2019.05.021 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.