کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10562919 969833 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Niobium(V) oxide coated on thin glass-ceramic rod as a solid phase microextraction fiber
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Niobium(V) oxide coated on thin glass-ceramic rod as a solid phase microextraction fiber
چکیده انگلیسی
The efficiency of niobium(V) oxide as a sorbent phase for solid phase microextraction (SPME) was investigated. The thin glass-ceramic rod was coated with niobium(V) oxide using chemical vapor deposition and Nb2O5 as a chemical precursor. Optimum conditions for the preparation and conditioning of the fibers are presented. The fibers were used for the extraction of a mixture of alcohols and a mixture of phenols from the headspace samples. The results obtained proved the suitability of niobium(V) oxide as a new SPME fiber. The calibration graphs for alcohols and phenols in a concentration range of 50-1000 μg l−1 were linear (r > 0.995) and the detection limits were below 0.8 μg l−1 level. The repeatability for one fiber (n = 6) under similar conditions was between 3 and 10.4%. The fiber-to-fiber reproducibility (n = 6) was between 5 and 15%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 66, Issue 1, 31 March 2005, Pages 74-79
نویسندگان
, , , , ,