کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
239721 | 466199 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of Natural Cr(VI) with Computer Screen Photo-assisted Technology
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection of Natural Cr(VI) with Computer Screen Photo-assisted Technology Detection of Natural Cr(VI) with Computer Screen Photo-assisted Technology](/preview/png/239721.png)
چکیده انگلیسی
The combined use of a computer screen and a webcam has been demonstrated in several cases to provide a platform for measuring optical properties of liquid and solid samples. Here the method is utilized to measure the absorbance change in an analytical procedure aimed at determining the amount of hexavalent chromium (Cr(VI)) in water. The method calibrated on standard solutions was tested on-field on naturally contaminated spring waters. Results show a sufficient resolution to measure Cr(VI) concentration down to 5 ppb. World Health Organization recommends a maximum concentration of 0.05 mg/l (50 ppb) for chromium (as hexavalent) in drinking waters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Chemistry - Volume 1, Issue 1, September 2009, Pages 317-320
Journal: Procedia Chemistry - Volume 1, Issue 1, September 2009, Pages 317-320