کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6396481 1628484 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Screening and determination of aliphatic organic acids in commercial Brazilian sugarcane spirits employing a new method involving capillary electrophoresis and a semi-permanent adsorbed polymer coating
ترجمه فارسی عنوان
غربالگری و تعیین اسیدهای ارگانیک آلیفاتیک در ارواح نیشکر شراب تجاری برزیل با استفاده از روش جدید شامل الکتروفورز مویرگی و یک پوشش پلیمری جذب شده نیمه دائمی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی
A simple method for the screening and determination of short chain aliphatic carboxylic acids in Brazilian sugarcane spirits by indirect capillary zone electrophoresis was developed and validated according to Eurachem guidelines. The separations were performed in a coated capillary (Ltot 73 cm × Ldet 64.5 cm) with 2-hydroxy-propyltrimethyl-ammonium chloride chitosan. The background electrolyte was optimized using Peakmaster® software and was composed of 21 mmol L− 1 β-alanine and 10 mmol L− 1 3,5 dinitrobenzoic acid, at pH 3.6, with an applied voltage of − 30 kV. The method was validated for formic, lactic and acetic acids. Linearity was demonstrated and significant matrix effects were not observed at between 2.8 and 144 mg L− 1. The recovery (means of 89.6-117.9%) was evaluated, and ANOVA was carried out to determine the RSD values for the repeatability (2.63-8.35%) and reproducibility (1.92-6.62%). The LOD and LOQ ranged from 0.69 to 2.70 and 2.76 to 8.11 mg L− 1, respectively. The concentrations detected in the samples were 0.19-106.43 mg per 100 g.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Research International - Volume 60, June 2014, Pages 123-130
نویسندگان
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