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Graphite-based microextraction by packed sorbent for online extraction of beta-blockers from human plasma samples
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- Abuzooda, Thana (author)
- Stockholms universitet,Institutionen för analytisk kemi
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- Amini, Ahmad (author)
- Swedish Drug Agency,751 03 Uppsala, Sweden
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- Abdel-Rehim, Mohamed (author)
- Stockholms universitet,Institutionen för analytisk kemi
- (creator_code:org_t)
- Elsevier BV, 2015
- 2015
- English.
- In: Journal of chromatography. B. - : Elsevier BV. - 1570-0232 .- 1873-376X. ; 992, s. 86-90
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- In the present work a new graphitic material (Carbon-XCOS) was used as a sorbent for microextraction by packed sorbent (MEPS).The beta-blockers metoprolol and acebutolol in plasma samples were extracted and detected online using Carbon-MEPS syringe and liquid chromatography and tandem mass spectrometry (LC-MS/MS). Factors affecting the MEPS performance such as conditioning, washing and elution solutions were investigated. The validation of the bioanalytical method was performed using human plasma. The standard curve ranged from 10 to 2000 nM and the lower limit of quantification (LLOQ) was set to 10 nM. The method validation showed good accuracy and precision for the quality control (QC) samples at three concentration levels (30, 800 and 1600 nM). The accuracy values of the QC samples were in the range of 86-108% (n = 18). The precision values of intra- and inter-day for QC samples ranged from 4.4% to 14.4% (RSD) for the both studied analytes. The coefficient of determination (R-2) values were >= 0.999 (n = 3).
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmaceutiska vetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmaceutical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Keyword
- Graphitic sorbent
- Microextraction by packed sorbent
- beta-Blocker
- Plasma samples
Publication and Content Type
- ref (subject category)
- art (subject category)
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