کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7641871 1494870 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A semiautomatic system for soluble lead and copper monitoring in atmospheric deposition by coupling of passive elemental fractionation sampling and voltammetric measurement on screen-printed gold electrodes
ترجمه فارسی عنوان
یک سیستم نیمه اتوماتیک برای نظارت بر سرب و روی محلول در اتمسفر جوی با استفاده از نمونه برداری از تجزیه عناصر منفعل و اندازه گیری ولتاژ بر روی الکترودهای طلای چاپی
کلمات کلیدی
فلزات سنگین، رسوبات جوی، سنسورهای چاپ شده روی صفحه نمایش، تعیین الکتروشیمیایی، فلز مس، رهبری،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
We propose here the concept of semiautomatic measurement of soluble copper and lead in atmospheric deposition by the coupling of filtrating-bulk passive sampling by an atmospheric elemental fractionation sampler (AEFS) designed for fractionation of soluble and insoluble elemental species, and square wave anodic stripping voltammetric detection on screen printed electrodes. The voltammetric parameters were optimized to provide a reliable method for Pb(II) and Cu(II) monitoring with detection limits in the low ng mL− 1 range. The method was validated by analyzing ambient water certified reference materials with good agreement between measured and certified values. The monitoring system was tested during a 1 month experimental campaign in a suburban area and proved useful to monitor copper changes in the atmospheric deposition. Lead was also measurable after fortification since its levels were under the detection limit of the voltammetric method. The results obtained were contrasted by a lab based standard ICP-MS method with good correlation. Our results are promising about the possibility of routine field use of unattended voltammetric measurements of trace element monitoring in atmospheric deposition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 124, January 2016, Pages 20-25
نویسندگان
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