کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1209294 965336 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of brominated phenols in water samples by on-line coupled isotachophoresis with capillary zone electrophoresis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of brominated phenols in water samples by on-line coupled isotachophoresis with capillary zone electrophoresis
چکیده انگلیسی

A method for determination of nine brominated phenols as environmental risk compounds was developed by on-line coupled capillary isotachophoresis and capillary zone electrophoresis (ITP–CZE). For ITP step, 1 × 10−2 mol L−1 hydrochloric acid with 3 × 10−2 mol L−1 ammediol pH 9.1 was used as the leading electrolyte, and 3 × 10−2 mol L−1 β-alanine with 2 × 10−2 mol L−1 sodium hydroxide pH 10.05 was used as the terminating electrolyte. As the background electrolyte for CZE separation, 2.5 × 10−2 mol L−1 β-alanine with 2.5 × 10−2 mol L−1 lysine pH 9.6 was used. All electrolytes contained 0.05% or 0.1% (m/v) hydroxyethylcellulose to suppress the electroosmotic flow. UV detection at wavelength 220 nm was used. Detection limits in order of tens of nmol L−1 were achieved. Good repeatability of migration times (less than 0.33% RSD) and good repeatability of peak areas (less than 7.19% RSD) at concentration level 5 × 10−8 mol L−1 were observed. Developed ITP–CZE method was applied to determination of brominated phenols in spiked tap and river water samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1217, Issue 20, 14 May 2010, Pages 3446–3451
نویسندگان
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