کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1168785 | 960606 | 2009 | 5 صفحه PDF | دانلود رایگان |
A stir bar sorptive extraction–gas chromatography–mass spectrometry (SBSE–GC–MS) method for the determination of tetramethylene disulfotetramine is presented. The limits of detection (LOD) of the optimized method was 0.2 ng g−1 for extractions from water and 0.3–2.1 ng g−1 for extractions from foods. Recovery was highly matrix dependent (36–130%) and quantification required standard addition calibrations. Standard addition calibration lines had high linearity (R2 > 0.97) and replicate extractions had good reproducibility (R.S.D. = 4.4–9.8%). A comparison of the SBSE method and a previously developed headspace (HS)-solid-phase microextraction (SPME) method was performed. Generally, SBSE provided higher sensitivity with decreased analysis time.
Journal: Analytica Chimica Acta - Volume 635, Issue 2, 9 March 2009, Pages 162–166