کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10556923 | 968450 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Separation of lead from high matrix electroless nickel plating waste solution using an ion-selective immobilized macrocycle system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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![عکس صفحه اول مقاله: Separation of lead from high matrix electroless nickel plating waste solution using an ion-selective immobilized macrocycle system Separation of lead from high matrix electroless nickel plating waste solution using an ion-selective immobilized macrocycle system](/preview/png/10556923.png)
چکیده انگلیسی
Separation of trace levels of lead from concentrated-matrix electroless nickel plating (ENP) waste solutions is required to meet the increasingly stringent environmental regulations. A solid phase extraction (SPE) system using a molecular recognition technology (MRT) gel was used for the selective separation of trace levels of lead (Pb) from the waste discharge of ENP operations, followed by subsequent analysis with inductively coupled plasma optical emission spectrometry (ICP-OES). Two SPE-MRTs, AnaLig® Pb-01 and AnaLig® Pb-02, packed in 3 mL polypropylene cartridges were used to treat the synthetic metal-waste solutions that were used to simulate the typical metal mixture in ENP bath waste. The fortified solutions contained 100-1000 μg Lâ 1 of Pb in an HNO3 matrix with pre-added Ni, Cu and other interfering elements (1000 mg Lâ 1). After the sample treatment, the SPE-MRT cartridges were washed with water and 0.1 M nitric acid, followed by elution with 0.03 M EDTA. The matrix elements (e.g., Ni, Cu) were completely removed at the washing step, while the 'captured' Pb was quantitatively eluted, as determined by ICP-OES measurements. The detection limit of the proposed method was 2.6 μg Lâ 1. 'Real' samples from commercial ENP operations were used to assess the validity of this method, and almost quantitative Pb recovery was observed. The excellent Pb selectivity of the SPE-MRT system indicates the potential of the proposed technique for trace-level Pb separation from the Pb-containing high matrix aqueous waste discharge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 98, Issue 1, May 2011, Pages 103-108
Journal: Microchemical Journal - Volume 98, Issue 1, May 2011, Pages 103-108
نویسندگان
Ismail M.M. Rahman, Yoshiaki Furusho, Zinnat A. Begum, Neil Izatt, Ronald Bruening, Akhmad Sabarudin, Hiroshi Hasegawa,