Application of high-performance liquid chromatography–UV detection to quantification of clenbuterol in bovine liver samples
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the role of application of dynamic assessment approach in improvement of iranian efl writing performance at different language proficiency levels
the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...
application and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples
ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...
15 صفحه اولDetermination of Ivermectin Residues in Bovine Liver Samples By ELISA and HPLC with Fluorescence Detection
ABSTRACT Background and Objectives: Ivermectin is an anti-parasitic medication frequently used in many food-producing animals. This study aimed to investigate the level of ivermectin residue in liver samples collected from slaughterhouses in Qazvin Province, Iran. Methods: Overall, 88 bovine liver sam...
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Background: Aflatoxin B1 is a secondary toxic metabolite produced by several aspergillus species. This study was conducted to determine the presence of aflatoxin in tomato paste samples. Methods: A total of 30 tomato pastes were analyzed for Aflatoxin B1 contamination via HPLC-FLD. Analyte extraction was done by dispersive liquid-liquid microextraction. Results: The limit of detection (LOD) and...
متن کاملAn application of high performance liquid chromatography to analysis of lipids in archaeological samples.
Five samples from three different types of 1500-year-old Mediterranean amphorae, as well as from a contemporary oil lamp found in the same deposit, were analyzed for the presence of lipid residues. Each sample of finely ground amphorae powder weighed 1-2 g. The abundance of interfering secondary products makes thin-layer chromatography (TLC) an essential step of the procedure. The fractionation...
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ژورنال
عنوان ژورنال: Journal of Food and Drug Analysis
سال: 2013
ISSN: 1021-9498
DOI: 10.1016/j.jfda.2013.09.009