کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1245023 | 969709 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemiluminometric photo-induced determination of Strychnine in a Multicommutation flow assembly
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper deals on the determination of Strychnine, a potent and dangerous pesticide and the analytical procedure is based on the photo-induced chemiluminescence of the pesticide by means of the Multicommutation continuous-flow methodology. Small segments of the pesticide solution were sequentially alternated with segments of the solution for adjusting the suitable medium for the photodegradation. The required time of UV irradiation was obtained by stopped-flow during 150 s; then, the resulting solution formed alternated segments with the oxidizing solution containing 5 Ã 10â3 mol lâ1 Ce(IV) in 0.6 mol lâ1 nitric acid. The calibration range, from 2 μg lâ1 to 50 mg lâ1, resulted in a linear behaviour over the range 25 μg lâ1 to 20 mg lâ1 and fitting the equation: I = 4706x + 624 with a correlation coefficient of 0.9955. The limit of detection was 2 μg lâ1 and the sample throughput 15 hâ1. After testing the influence of a large series of potential interferents, the method was applied to different kinds of samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 72, Issue 3, 15 May 2007, Pages 1223-1229
Journal: Talanta - Volume 72, Issue 3, 15 May 2007, Pages 1223-1229
نویسندگان
A.S. Alves Ferreira, J.R. Albert-GarcÃa, J. MartÃnez Calatayud,