کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10556804 | 968431 | 2011 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of ultrasound-assisted emulsification microextraction with solidification of floating organic droplet followed by high performance liquid chromatography for the analysis of phthalate esters in cosmetic and environmental water samples
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optimization of ultrasound-assisted emulsification microextraction with solidification of floating organic droplet followed by high performance liquid chromatography for the analysis of phthalate esters in cosmetic and environmental water samples Optimization of ultrasound-assisted emulsification microextraction with solidification of floating organic droplet followed by high performance liquid chromatography for the analysis of phthalate esters in cosmetic and environmental water samples](/preview/png/10556804.png)
چکیده انگلیسی
Ultrasound-assisted emulsification microextraction with solidification of floating organic droplet (USAEME-SFO) followed by high performance liquid chromatography-diode array detection (HPLC-DAD), was applied for preconcentration and determination of phthalate esters in cosmetic and water samples. The effects of different variables on the extraction efficiency were studied simultaneously using an experimental design. The variables of interest in the USAEME-SFO were extraction solvent volume, salt effect, extraction time and centrifugation time. A factorial experimental design was employed for screening to determine the variables significantly affecting the extraction efficiency. Then, the significant factors were optimized by using a Box-Behnken design (BBD) and the response surface equations were derived. The optimum experimental conditions were extraction solvent volume, 30 μL; sodium chloride concentration, 20% (w/v); extraction time, 12 min and centrifugation time, 5 min. Under optimal conditions, the preconcentration factors were between 355 and 409. The limit of detections (LODs) ranged from 0.005 μg Lâ1 (for Diethylphthalate) to 0.01 μg Lâ1 (for Dimethylphthalate). Dynamic linear ranges; (DLRs) of 0.05-800 and 0.05-1000 μg Lâ1 were obtained for Diisobutyl- and Dimethylphthalate, respectively. The performance of the method was evaluated for extraction and determination of phthalate esters in cosmetic and environmental water samples in micrograms per liter and satisfactory results were obtained (RSDs < 12.6%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 99, Issue 1, September 2011, Pages 26-33
Journal: Microchemical Journal - Volume 99, Issue 1, September 2011, Pages 26-33
نویسندگان
Fahimeh Kamarei, Homeira Ebrahimzadeh, Yadollah Yamini,