{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T16:16:45Z","timestamp":1790439405842,"version":"4.1.0"},"reference-count":13,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,1,12]],"date-time":"2021-01-12T00:00:00Z","timestamp":1610409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Drug Testing and Analysis"],"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Phosphatidylethanol 16:0\/18:1 (PEth) is the most abundant homologue of the phosphatidylethanol group of phospholipids. Formed only in the presence of ethanol, PEth is used as a biomarker in whole blood to provide information about the consumption of alcohol. As information on the storage life of PEth is essential for its beneficial use as a biomarker, this study investigated the stability of PEth in spiked and authentic whole blood samples stored at 4\u00b0C. Human whole blood samples (<jats:italic>n<\/jats:italic>\u00a0=\u00a023) and spiked whole blood samples (<jats:italic>n<\/jats:italic>\u00a0=\u00a07) with a concentration range between 5 and 2000\u00a0ng\/ml were analysed at specific time intervals, up to 90\u00a0days. Differences were evident between the stability of authentic and spiked samples. PEth was stable at 4\u00b0C for 60\u00a0days (concentrations within 15% of initial concentration) in authentic samples, whereas spiked samples were stable for up to 30\u00a0days. This study emphasizes the importance of including authentic samples in stability experiments.<\/jats:p>","DOI":"10.1002\/dta.2995","type":"journal-article","created":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T17:34:02Z","timestamp":1609781642000},"page":"1219-1222","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Stability of phosphatidylethanol 16:0\/18:1 in authentic and spiked whole blood"],"prefix":"10.1002","volume":"13","author":[{"given":"Catalina","family":"Dumitrascu","sequence":"first","affiliation":[{"name":"Toxicological Centre University of Antwerp  Antwerp Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria C.A.","family":"van de Lavoir","sequence":"additional","affiliation":[{"name":"Toxicological Centre University of Antwerp  Antwerp 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