کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7613623 1493595 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ionic liquid-based solid phase microextraction necklaces for the environmental monitoring of ketamine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Ionic liquid-based solid phase microextraction necklaces for the environmental monitoring of ketamine
چکیده انگلیسی
Wearable solid phase microextraction (SPME) devices consisting in necklaces and pins were developed for the environmental monitoring of ketamine in recreational places using ionic liquid as coating. SPME fibers obtained using both monocationic and dicationic polymeric ionic liquids were characterized in terms of morphology, film thickness, thermal stability and pH resistance. An average thickness of 30 ± 5 μm, an excellent thermal stability until 350 °C and a very good fiber-to-fiber and batch-to-batch repeatability with RSD lower than 4% were some of the features of the developed coatings. A quantitation limit (LOQ) of 0.05 mg/m3 with a sampling time of 1 min proved the feasibility of the developed method for the quantitation of ketamine in air at low concentration levels. Finally, the capabilities of the fibers for the rapid SPME sampling of ketamine in recreational places were proved obtaining extraction efficiencies at least two-fold higher than those obtained using commercial devices and extraction recoveries ranging from 84.2 ± 3.3% to 93.6 ± 2.6% (n = 3).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1331, 28 February 2014, Pages 1-9
نویسندگان
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