کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1202513 1493553 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In-syringe dispersive solid-phase extraction using dissolvable layered double oxide hollow spheres as sorbent followed by high-performance liquid chromatography for determination of 11 phenols in river water
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
In-syringe dispersive solid-phase extraction using dissolvable layered double oxide hollow spheres as sorbent followed by high-performance liquid chromatography for determination of 11 phenols in river water
چکیده انگلیسی


• An in-syringe dispersive solid-phase extraction approach was developed.
• Layered double oxide hollow spheres were employed as a dissolvable sorbent.
• The sorbent showed much high extraction efficiency due to high specific surface area.
• Eleven US EPA listed phenols from aqueous samples were determined.

Layered double oxide hollow spheres (LDO-HSs) were synthesized and employed as a dissolvable sorbent in dispersive solid-phase extraction (DSPE) to extract eleven United States Environmental Protection Agency's priority phenols from aqueous samples. With their higher specific surface area, LDO-HSs showed much higher extraction efficiency than normal layered double hydroxides and layered double oxides. The entire extraction process was accomplished in a syringe. After DSPE, the sorbent with the analytes was isolated conveniently by directly expelling the spent sample solution out of the syringe. The analyte-enriched sorbent was then subsequently dissolved by withdrawing an acidic solution into the syringe. The final extract was analyzed by high-performance liquid chromatography with ultraviolet detection. The results showed that this method provided low limits of detection for the phenols (0.005–0.153 μg/L), good linearity (r2 ≥ 0.9956) and relative standard deviations of ≤6.7%. The optimized method was applied to water samples from 3 rivers. This simple extraction procedure was demonstrated to be a fast, efficient and convenient DSPE approach.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1373, 19 December 2014, Pages 31–39
نویسندگان
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