کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10140917 | 1646048 | 2019 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-syringe solvent-assisted dispersive solid phase extraction followed by flame atomic absorption spectrometry for determination of nickel in water and food samples
ترجمه فارسی عنوان
استخراج فاز جامد فاز جامد با حلال با استفاده از اسپکترومتر جذب اتمی شعله برای تعیین نیکل در نمونه های آب و غذا
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
استخراج فاز جامد اسپری با کمک حلال درون سرنگ، تعیین نیکل، طیف سنجی جذب اتمی شعله، نمونه های آب و غذا،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
This study presents a new in-syringe solvent-assisted dispersive solid phase extraction (ISSADSPE) method for determination of nickel ions in water and food. The method involved dispersion of a few milligrams of sorbent in the sample solution inside the barrel of a syringe through application of a disperser solvent. In less than 1â¯min, the extraction equilibrium was achieved due to dispersion of the sorbent and high mass transfer rate. Afterwards, syringe membrane was employed to separate the dispersed sorbent from the solution. Then the ethanol was withdrawn by syringe membrane to dissolve the analyte-enriched sorbent. Flame atomic absorption spectroscopy was applied to assess the obtained extract. Effective factors such as the sorbent nature and amount, sample volume, pH, ligand concentration, type and volume of disperser solvent and eluent, ionic strength and extraction time were evaluated and optimized to improve the extraction efficiency. Under optimized conditions (pHâ¯=â¯8.0, ligand concentrationâ¯=â¯2.0â¯Ãâ¯10â4, sorbentâ¯=â¯10â¯mg of benzophenone, disperser solvent 500â¯Î¼L of ethanol), the limit of detection and quantification were found to be 0.7â¯Î¼gâ¯Lâ1 and 2.0â¯Î¼gâ¯Lâ1, respectively. The calibration curve kept its linearity from 2 to150â¯Î¼gâ¯Lâ1, with the square correlation coefficient of 0.997. The relative standard deviation was measured as 2.5% while the enrichment factor was assessed as 50. The proposed method was successfully applied for determination of nickel in environmental water, spinach and celery samples, with recovery range of 97-101%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microchemical Journal - Volume 144, January 2019, Pages 88-92
Journal: Microchemical Journal - Volume 144, January 2019, Pages 88-92
نویسندگان
Jamshid Mofid Nakhaei, Mohammad Reza Jamali, Shabnam Sohrabnezhad, Reyhaneh Rahnama,