{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T14:55:11Z","timestamp":1787064911406,"version":"build-2736575974"},"reference-count":74,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,7,26]],"date-time":"2022-07-26T00:00:00Z","timestamp":1658793600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009687","name":"Wroclaw Medical University","doi-asserted-by":"publisher","award":["SUBK.A120.22.047"],"award-info":[{"award-number":["SUBK.A120.22.047"]}],"id":[{"id":"10.13039\/501100009687","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Toxics"],"abstract":"<jats:p>The aim of the research was to establish a sensitive method for the quantification of diclofenac in postmortem samples. The developed method was applied in six cases: three fetuses in which the use of abortion pills by their mothers was suspected, one case of duodenal ulcer perforation, one case of traffic accident with fatal outcome, and one acute renal failure in which the distribution of diclofenac was examined. The analyses were performed using liquid\u2013liquid extraction of postmortem samples and the quantification of diclofenac via ultra-high performance liquid chromatography, coupled with triple quadrupole tandem mass spectrometry. Gradient elution using a C18 column was applied. Electrospray ionization measurement in positive multiple reaction monitoring mode was used. Diclofenac-d4 was used as an internal standard. The validation parameters were as follows: lower limit of quantification: 0.5 ng\/mL, linearity of calibration curve: 0.5\u2013500 ng\/mL, intra- and interday accuracies and precisions: not greater than 15%; recovery values: 72.0\u2013102.2%, and matrix effect: 2.2\u201328.0%. The developed method enabled the determination of diclofenac in human postmortem biological fluids (blood, urine, vitreous humor, bile, and stomach content), tissues (placenta, kidney, liver, and heart), and in exhumated fetus bones, with high recovery, sensitivity, precision, and accuracy.<\/jats:p>","DOI":"10.3390\/toxics10080421","type":"journal-article","created":{"date-parts":[[2022,7,29]],"date-time":"2022-07-29T01:41:16Z","timestamp":1659058876000},"page":"421","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Diclofenac Concentrations in Post-Mortem Specimens\u2014Distribution, Case Reports, and Validated Method (UHPLC-QqQ-MS\/MS) for Its Determination"],"prefix":"10.3390","volume":"10","author":[{"given":"Pawe\u0142","family":"Szpot","sequence":"first","affiliation":[{"name":"Department of Forensic Medicine, Wroclaw Medical University, 50345 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga","family":"Wache\u0142ko","sequence":"additional","affiliation":[{"name":"Institute of Toxicology Research, 45 Kasztanowa Street, 55093 Borowa, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2146-9724","authenticated-orcid":false,"given":"Marcin","family":"Zawadzki","sequence":"additional","affiliation":[{"name":"Department of Forensic Medicine, Wroclaw Medical University, 50345 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1016\/0002-9343(86)90084-7","article-title":"Adverse reactions to nonsteroidal anti-inflammatory drugs diclofenac compared with other nonsteroidal anti-inflammatory drugs","volume":"80","year":"1986","journal-title":"Am. 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