Development of salt and pH-induced solidified floating organic droplets homogeneous liquid-liquid microextraction for extraction of ten pyrethroid insecticides in fresh fruits and fruit juices followed by gas chromatography-mass spectrometry
Development of salt and pH-induced solidified floating organic droplets homogeneous liquid-liquid microextraction for extraction of ten pyrethroid insecticides in fresh fruits and fruit juices followed by gas chromatography-mass spectrometry
نویسندگان: محمدعلی تربتی , مصطفی تربتی , علی اکبر علیزاده نبیل , محمدرضا افشار مقدم
کلمات کلیدی: Pyrethroid pesticides
Homogeneous liquid–liquid microextraction
Solidification of floating organic drop, Gas
chromatography
Mass spectrometry
نشریه: 32780 , 1 , 176 , 2017
| نویسنده ثبت کننده مقاله |
محمدعلی تربتی |
| مرحله جاری مقاله |
تایید نهایی |
| دانشکده/مرکز مربوطه |
دانشکده طب سنتی |
| کد مقاله |
61828 |
| عنوان فارسی مقاله |
Development of salt and pH-induced solidified floating organic droplets homogeneous liquid-liquid microextraction for extraction of ten pyrethroid insecticides in fresh fruits and fruit juices followed by gas chromatography-mass spectrometry |
| عنوان لاتین مقاله |
Development of salt and pH-induced solidified floating organic droplets homogeneous liquid-liquid microextraction for extraction of ten pyrethroid insecticides in fresh fruits and fruit juices followed by gas chromatography-mass spectrometry |
| ناشر |
6 |
| آیا مقاله از طرح تحقیقاتی و یا منتورشیپ استخراج شده است؟ |
بلی |
| عنوان نشریه (خارج از لیست فوق) |
|
| نوع مقاله |
Original Article |
| نحوه ایندکس شدن مقاله |
ایندکس شده سطح یک – ISI - Web of Science |
| آدرس لینک مقاله/ همایش در شبکه اینترنت |
http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=3&SID=W2sGsWIRj7SjTkCTXWd&page=1&doc=1 |
| Development of salt and pH–induced solidified floating organic droplets homogeneous liquid–liquid microextraction for extraction of ten pyrethroid insecticides in fresh fruits and fruit juices followed by gas chromatographymass spectrometry
A new microextraction method named salt and pH–induced homogeneous liquid-liquid microextraction has been
developed in a home–made extraction device for the extraction and preconcentration of some pyrethroid insecticides
from different fruit juice samples prior to gas chromatography–mass spectrometry. In the present
work, an extraction device made from two parallel glass tubes with different lengths and diameters was used in
the microextraction procedure. In this method, a homogeneous solution of a sample solution and an extraction
solvent (pivalic acid) was broken by performing an acid–base reaction and the extraction solvent was produced
in whole of the solution. The produced droplets of the extraction solvent went up through the solution and
solidified using an ice-bath. They were collected without centrifugation step. Under the optimum conditions,
limits of detection and quantification were obtained in the ranges of 0.006–0.038, and 0.023–0.134 ng mL–1
,
respectively. The enrichment factors and extraction recoveries of the selected analytes ranged from 365–460 to
73–92%, respectively. The relative standard deviations were lower than 9% for intra– (n = 6) and inter–day (n
= 4) precisions at a concentration of 1 ng mL–1 of each analyte. Finally, some fruit juice samples were effectively
analyzed by the proposed method. |
| نام فایل |
تاریخ درج فایل |
اندازه فایل |
دانلود |
| talanta.pdf | 1396/08/30 | 847022 | دانلود |