کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7607528 | 1493361 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave-assisted preparation of boron acid modified expanded graphite for the determination of chloramphenicol in egg samples
ترجمه فارسی عنوان
آماده سازی مایکروویو از گرافیت گسترش یافته اصلاح شده با اسید بوریک برای تعیین کلرامفنیکول در نمونه های تخم مرغ
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کلمات کلیدی
گرافیت گسترش یافته، مایکروویو، کلارفنیکول، تخم مرغ، کروماتوگرافی مایع اسپکترومتری دو طرفه، استخراج فاز جامد،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A rapid and simple method for the synthesis of boron acid modified expanded graphite (B-EG) with the assist of microwave irradiation was developed. The synthesis process can be completed in one-step, where H2SO4 and H3BO3 were used as intercalating agent and KMnO4 was used as oxidizing agent. The obtained B-EG was worm-like and lamellar structure with plenty of small dispersed particles. The B-EG was successfully used as solid phase extraction absorbent for the enrichment and separation of chloramphenicol in egg samples, followed by liquid chromatography tandem mass spectrometry analysis. The predominant conditions affecting extraction efficiency were optimized. Under optimal conditions, the detection limit of the method was 0.27 ng gâ1. The relative standard deviations of within-day and between-day were in the range of 2-6% and 2-8%, respectively. The method was successfully used to detect chloramphenicol in five egg samples. At the spiked concentration of 50 ng gâ1, the satisfactory recoveries (87-94%) were obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1565, 31 August 2018, Pages 29-35
Journal: Journal of Chromatography A - Volume 1565, 31 August 2018, Pages 29-35
نویسندگان
Tianyu Zhou, Fengshuang Zhang, Haochi Liu, Huiyu Li, Yuan Xu, Li Zhao, Jie Ding, Lan Ding, Yi Li,