کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1171787 | 960731 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel oxidation reaction of prochlorperazine with bromate in the presence of synergistic activators and its application to trace determination by flow injection/spectrophotometric method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Novel oxidation reaction of prochlorperazine with bromate in the presence of synergistic activators and its application to trace determination by flow injection/spectrophotometric method Novel oxidation reaction of prochlorperazine with bromate in the presence of synergistic activators and its application to trace determination by flow injection/spectrophotometric method](/preview/png/1171787.png)
چکیده انگلیسی
A simple and fast flow injection spectrophotometric method for the determination of bromate in water samples was developed. The detection system is based on the oxidation of prochlorperazine (PCP) with bromate in strongly acidic medium. Large amounts of chloride and bromide was found, for the first time, to act as an activator, and to enhance the sensitivity for bromate detection. The oxidation product of PCP gives pink color, which can be used to monitor the reaction spectrophotometrically at 525 nm. Under the optimal conditions, the method is selective; only nitrite, chlorite and hypochlorite can interfere with the determination of bromate. The elimination of these three ions is discussed. The calibration graph for bromate determination was linear in the range of 10-130 μg Lâ1 with a detection limit of 2.3 μg Lâ1. The repeatability was satisfactory, with the relative standard deviation of 1.1% (25 μg Lâ1, n = 10). The sample throughput was 44 hâ1. The proposed method was found to be highly reliable for screening drinking waters containing bromate, which is above or below legislation limit of 10 μg Lâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 580, Issue 1, 27 October 2006, Pages 68-74
Journal: Analytica Chimica Acta - Volume 580, Issue 1, 27 October 2006, Pages 68-74
نویسندگان
Kanchana Uraisin, Toshio Takayanagi, Duangjai Nacapricha, Shoji Motomizu,