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Modern methods provide an opportunity to ensure specificity in the future but analysts must continue to be aware of the potential pitfalls. Examples of non-specificity in colorimetric, UV spectrophotometric, and immunological techniques are described and the clinical implications are demonstrated.<\/jats:p>","DOI":"10.1177\/000456328201900413","type":"journal-article","created":{"date-parts":[[2014,2,5]],"date-time":"2014-02-05T16:57:08Z","timestamp":1391619428000},"page":"254-257","source":"Crossref","is-referenced-by-count":5,"title":["Drug Analyses in Poisoned Patients\u2014The Need to Be Specific"],"prefix":"10.1177","volume":"19","author":[{"given":"M J","family":"Stewart","sequence":"first","affiliation":[{"name":"Department of Biochemistry, Royal Infirmary, Glasgow G4 0SF"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1982,7,1]]},"reference":[{"key":"bibr1-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1176\/ajp.113.10.931-a"},{"key":"bibr2-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1042\/bj0570301"},{"key":"bibr3-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1021\/ac60070a022"},{"key":"bibr4-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(64)91921-X"},{"key":"bibr5-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM196506242722502"},{"key":"bibr6-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(65)92073-8"},{"key":"bibr7-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.1.5748.519"},{"key":"bibr8-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1093\/clinchem\/19.6.615"},{"key":"bibr9-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM197501302920507"},{"key":"bibr10-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.2.5512.497"},{"key":"bibr11-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1093\/clinchem\/14.9.882"},{"key":"bibr12-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1177\/000456327601300133"},{"key":"bibr13-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1093\/clinchem\/11.12.1064"},{"key":"bibr14-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(74)92649-X"},{"key":"bibr15-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2125.1978.tb01687.x"},{"key":"bibr16-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1177\/000456327901600118"},{"key":"bibr17-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.2.6195.902-a"},{"key":"bibr18-000456328201900413","doi-asserted-by":"crossref","first-page":"985","DOI":"10.1093\/clinchem\/26.11.1622b","volume":"26","author":"Stewart MJ","year":"1980","journal-title":"Clin Chem"},{"key":"bibr19-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1007\/BF02116826"},{"key":"bibr20-000456328201900413","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.1.6114.693"},{"key":"bibr21-000456328201900413","unstructured":"Johannessen SI, Baruzzi A, Gomeni R,  Further observations on carbamazepine and carbamazepine 10,11-epoxide in epileptic patients in antiepileptic drug monitoring. 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