Liquid-Liquid ExtractionLow-Temperature Purification (LLELTP) Followed by Dispersive Solid-Phase Extraction (d-SPE) Cleanup for Multiresidue Analysis in Palm Oil by LC-QTOF-MS
المؤلفون المشاركون
Sobhanzadeh, Elham
Nemati, Keivan
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-10-04
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
An evaluation of the extraction of multiresidue pesticides from palm oil by liquid-liquid extraction/low-temperature purification (LLE/LTP) coupled with dispersive solid-phase extraction (d-SPE) as the cleanup procedure with the determination by liquid chromatography mass spectrometry using electrospray as the ionization source (LC-ESI-MS) was carried out.
Optimization approaches were studied in terms of d-SPE to select efficiency of type and mass of adsorbents to obtain the highest recovery yield of pesticides and the lowest coextract fat residues in the final extract.
The optimal conditions of d-SPE were obtained using 3 g of palm oil, 4 g anhydrous MgSO4, 150 mg of PSA, and 50 mg of GCB (PSA: GCB (3 : 1 w/w)).
Recovery study was performed at three concentration levels (25, 50, and 100 ng kg−1), yielding recovery rates between 71.8 and 112.4% except diuron with relative standard deviations of 3.2–15.1%.
Detection and quantification limits were lower than 2.7 and 8.2 ng kg−1, respectively.
The proposed method was successfully applied to the analysis of market-purchased palm oil samples from two different brands collected in Kuala Lumpur, showing its potential applicability and revealing the presence of some of the target species in the ng g−1 range.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Sobhanzadeh, Elham& Nemati, Keivan. 2012. Liquid-Liquid ExtractionLow-Temperature Purification (LLELTP) Followed by Dispersive Solid-Phase Extraction (d-SPE) Cleanup for Multiresidue Analysis in Palm Oil by LC-QTOF-MS. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-507724
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Sobhanzadeh, Elham& Nemati, Keivan. Liquid-Liquid ExtractionLow-Temperature Purification (LLELTP) Followed by Dispersive Solid-Phase Extraction (d-SPE) Cleanup for Multiresidue Analysis in Palm Oil by LC-QTOF-MS. Journal of Chemistry No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-507724
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Sobhanzadeh, Elham& Nemati, Keivan. Liquid-Liquid ExtractionLow-Temperature Purification (LLELTP) Followed by Dispersive Solid-Phase Extraction (d-SPE) Cleanup for Multiresidue Analysis in Palm Oil by LC-QTOF-MS. Journal of Chemistry. 2012. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-507724
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-507724
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر