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List of Articles Mehdi Ansari Open Access Article Abstract Page Full-Text 1 - Extraction and determination of group of volatile organic compounds by headspace - solid phase microextraction - gas chromatography in tea and vegetable samples Mahboobeh Dehghani Maryam Kazemipour Mehdi Ansari Mehdi shahidizandi 10.30495/qafj.2021.1944457.1017 20.1001.1.27833410.1400.1.2.7.7 Open Access Article Abstract Page Full-Text 2 - Determining the residue of 198 different pesticides in various types of dates available in the Iranian market with the modified QuEChERS extraction method and gas chromatography tandem mass spectrometry Azimeh Khezri Mehdi Ansari Maryam Kazemipour Maryam Amirahmadi Mehdi Shahidi 10.30495/qafj.2022.1964862.1043