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Assay for screening for six antimalarial drugs and one metabolite using dried blood spot sampling, sequential extraction and ion-trap detection
Högskolan Dalarna, Akademin Industri och samhälle, Kemiteknik.
Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Kemi.
Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Medicinsk vetenskap.
2010 (engelsk)Inngår i: Bioanalysis, ISSN 1757-6180, E-ISSN 1757-6199, Vol. 2, nr 11, s. 1839-1847Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: More parasites are becoming resistant to antimalarial drugs, and in many areas a change in first-line drug treatment is necessary. The aim of the developed assay is to help determine drug use in these areas and also to be a complement to interviewing patients, which will increase reliability of surveys.

Results: This assay detects quinine, mefloquine, sulfadoxine, pyrimethamine, lumefantrine, chloroquine and its metabolite desethylchloroquine in a 100-mu l dried blood spot. Most of the drugs also have long half-lives that make them detectable at least 7 days after administration. The drugs are extracted from the dried blood spot with sequential extraction (due to the big differences in physicochemical properties), solid-phase extraction is used as sample clean-up and separation is performed with gradient-LC with MS ion-trap detection.

Conclusion: Detection limits (S/N > 5:1) at 50 ng/ml or better were achieved for all drugs except lumefantrine (200 ng/ml), and thus can be used to determine patient compliance. A major advantage of using the ion-trap MS it that it will be possible to go back into the data and look for other drugs as needed.

sted, utgiver, år, opplag, sider
2010. Vol. 2, nr 11, s. 1839-1847
HSV kategori
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Hälsa och välfärd
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URN: urn:nbn:se:du-10465DOI: 10.4155/BIO.10.147ISI: 000286647100016OAI: oai:DiVA.org:du-10465DiVA, id: diva2:542756
Tilgjengelig fra: 2012-08-03 Laget: 2012-08-03 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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