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Simultaneous Spectrophotometric Determination of Some Polycyclic Aromatic Hydrocarbons Using Salting-Out Assisted Liquid-Liquid Extraction Coupled with Doolittle Multivariate Calibration Algorithm | ||
| Iranian Journal of Analytical Chemistry | ||
| مقاله 3، دوره 6، شماره 2 - شماره پیاپی 12، آذر 2019، صفحه 24-32 اصل مقاله (754.11 K) | ||
| نوع مقاله: Full research article | ||
| شناسه دیجیتال (DOI): 10.30473/ijac.2019.46474.1147 | ||
| نویسندگان | ||
| Ahmadreza Amraei* 1؛ Mohammad Hosseini2؛ Rouhollah Heydari1؛ Ali Niazi3 | ||
| 1Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, P.O. Box 68149-89468, Khorramabad, Iran | ||
| 2Department of pharmacology Lorestan University of Medicl Scienes, Khorramabad, Iran | ||
| 3Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran | ||
| چکیده | ||
| Simultaneous spectrophotometric determination of some polycyclic aromatic hydrocarbons (PAHs) in wastewater samples after preconcentration by salting-out assisted liquid-liquid extraction was achieved using a doolittle multivariate calibration algorithm (DMCA). The DMCA was applied by lower and upper (LU) triangular matrix decomposition which is efficient, powerful and easily. Results were shown that DMCA has advantages such as, simplicity, rapidness, avoiding matrix inverting and reducing the orders of matrices. The influence of various parameters, such as extraction solvent and volume, type and amount of salt, vortex time and sample pH were studied and optimized. The net analyte signal (NAS) method was used for calculating figures of merit. Linear range (LR) of calibration graphs for naphthalene, anthracene and pyrene were between 0.20 - 2.00, 0.10 - 1.50 and 0.07 -1.00 µg mL-1, respectively. The root mean square errors of prediction (RMSEP) for naphthalene, anthracene and pyrene using DMCA model were 0.0367, 0.0331 and 0.0305, respectively. | ||
| کلیدواژه‌ها | ||
| Polycyclic Aromatic Hydrocarbons؛ Simultaneous Determination؛ Spectrophotometry؛ Doolittle Multivariate Calibration Algorithm؛ Salting-Out Assisted Liquid-Liquid Extraction | ||
| عنوان مقاله [English] | ||
| اندازه گیری همزمان اسپکتروفتومتری هیدروکربن های آرماتیک چند حلقه ی با استفاده از پیش تغلیظ استخراج مایع-مایع کمک شده با نمک زنی جفت شده با الگوریتم چند متغیره دولیتل | ||
| نویسندگان [English] | ||
| احمد رضا امرایی1؛ سید محمد حسینی2؛ روح الله حیدری1؛ علی نیازی3 | ||
| 1مرکز تحقیقات داروهای گیاهی رازی، دانشگاه علوم پزشکی لرستان، صندوق پستی 68149-89468 ، خرم آباد، ایران | ||
| 2دانشگاه علوم پزشکی لرستان، دانشکده دارو سازی، گروه شیمی، خرم آباد، ایران | ||
| 3گروه شیمی، واحد مرکزی تهران، دانشگاه آزاد اسلامی، تهران، ایران | ||
| چکیده [English] | ||
| اندازه گیری همزمان اسپکتروفتومتری چند هیدروکربن آروماتیک چند حلقه ی در نمونه های آبی بعد از پیش تغلیظ استخراج مایع-مایع کمک شده با نمک زنی با استفاده از الگوریتم چند متغیره دولیتل بدست آورده شده است. الگوریتم چند متغیره دولیتل از تجزیه ماتریس بالا و پایین مثلثی استفاده می کند که روشی آسان و نیرومند است. نتایج نشان می دهد که الگوریتم چند متغیره دولیتل دارای مزایای مانند سادگی، سرعت، اجتناب از معکوس نمودن ماتریس و کاهش مرتبه ماتریس می باشد. تأثیر پارامترهای مختلفی نظیر حلال استخراج و حجم، نوع و مقدار نمک، زمان ورتکس و pH نمونه مورد بررسی و بهینه سازی شد. برای محاسبه ارقام شایستگی از روش سیگنال خالص آنالیت استفاده شده است. محدوده خطی برای منحنی کالیبراسیون به ترتیب برای نفتالن، آنتراسن و پبرن بین 2.00-0.20، 1.50-0.10 و 1.00-0.07 میلی گرم بر لیتر تعیین گردید. میانگین مربعات خطای پیشگویی برای نفتالن، آنتراسن و پیرن با استفاده از مدل الگوریتم چند متغیره دولیتل به ترتیب 0.0367، 0.0301 و 0.0305 بدست آمد. | ||
| کلیدواژه‌ها [English] | ||
| هیدروکربن های آرماتیک چند حلقه ی, اندازه گیری همزمان اسپکتروفتومتری, الگوریتم چند متغیره دولیتل, استخراج مایع-مایع کمک شده با نمک زنی جفت شده | ||
| مراجع | ||
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