تفاصيل الوثيقة

نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
Development of natural sorbent based micro-solid-phase extraction for determination of phthalate esters in milk samples
Development of natural sorbent based micro-solid-phase extraction for determination of phthalate esters in milk samples
 
لغة الوثيقة : الانجليزية 
المستخلص : In the present study, a natural sorbent based micro-solid phase extraction (m-SPE) was developed for determination of phthalate esters in milk samples. For the first time, an efficient and cost effective natural material (seed powder of Moringa oleifera) was employed as sorbent in m-SPE. The sorbent was found to be naturally enriched with variety of functional groups and having a network of interconnected fibers. This method of extraction integrates different steps such as removal of proteins and fatty stuff, extraction and pre-concentration of target analytes into a single step. Thirteen phthalate esters were selected as target compounds for the development and evaluation of method. Some key parameters affecting the extraction efficiency were optimized, including selection of membrane, selection and amount of sorbent, extraction time, desorption solvent, volume of desorption solvent, desorption time and effect of salt addition. Under the optimum conditions, very good linearity was achieved for all the analytes with coefficient of determinations (R2) ranging between 0.9768 and 0.9977. The limits of detection ranged from 0.01 to 1.2 mg L1. Proposed method showed satisfactory reproducibility with relative standard deviations ranging from 3.6% to 10.2% (n ¼ 7). Finally, the developed method was applied to tetra pack and bottled milk samples for the determination of phthalate esters. The performance of natural sorbent based m-SPE was better or comparable to the methods reported in the literature. 
ردمد : 0003-2670 
اسم الدورية : Analytica chimica acta 
المجلد : 924 
العدد : 1 
سنة النشر : 1437 هـ
2016 م 
نوع المقالة : مقالة علمية 
تاريخ الاضافة على الموقع : Sunday, July 9, 2017 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
Sajid MuhammadMuhammad, Sajid باحثدكتوراه 
Basheer ChanbashaChanbasha, Basheer باحث رئيسيدكتوراه 
Alsharaa AbdulnaserAbdulnaser, Alsharaa باحثدكتوراه 
Narasimhan KothandaramanKothandaraman, Narasimhan باحثدكتوراه 
Abdelbaset BuhmeidaBuhmeida, Abdelbaset باحثدكتوراه 
Mohammed Al QahtaniAl Qahtani, Mohammed باحثدكتوراه 
Mahmoud Shaheen Al-AhwalAl-Ahwal, Mahmoud Shaheen باحثدكتوراه 

الملفات

اسم الملفالنوعالوصف
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