کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7585380 1492037 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of pure certified reference material of stevioside
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Development of pure certified reference material of stevioside
چکیده انگلیسی
Pure stevioside was extracted from leaves of Stevia rebaudiana (Bertoni) to be used as a reference material in the instrument calibration or method validation process. The mass fraction was determined by comparison between the mass balance method and quantitative nuclear magnetic resonance (qNMR) spectroscopy. The impurities in the sample were analyzed by Karl Fischer titration for moisture content and thermogravimetric analysis for inorganic residue. Homogeneity, together with short term and long term stability, were also studied and the uncertainty was reported. The certified value of this mass fraction is 0.986 ± 0.0019 (k = 2) with 1 year stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 255, 30 July 2018, Pages 75-80
نویسندگان
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