کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1212510 1494090 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of nucleotides in infant milk formulas using novel dendrimer ion-exchangers
ترجمه فارسی عنوان
تعیین نوکلئوتید ها در فرمول های شیر مادر شیرین با استفاده از یون مبدل های جدید دندریمر
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Silica-based stationary phases of great efficiency were synthesized for IC.
• New type of dendrimeric anion-exchanger was applied for the separation of nucleotides.
• Novel anion-exchanger was applied for analysis of nucleotides in milk in 6 min.

The main aim of the present study was to develop a method for the separation of 5′-monophosphate nucleotides with the use of ion chromatography. Novel dendrimeric stationary phases were used for this purpose. The effects exerted by the type of anion-exchanger support (silica or polymeric) and the number of stationary phase layers on nucleotide retention were studied. A silica-based dendrimeric anion-exchanger was most suitable for analyzing the studied compounds. An increase in the number of layers enhanced nucleotide retention inside the column. The separation efficiency of the studied compounds was tested at various concentrations of the mobile phase buffer. At higher phosphate buffer concentrations, nucleotide resolutions were achieved in 6 min. Three commercially available infant milk formulas were analyzed to verify the applicability of the studied method. Solid phase extraction was used for sample cleanup and concentration. The limit of quantification of nucleotides was 0.40 μg/ml, and the method was linear in the concentration range of 0.40–20.6 μg ml−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volumes 949–950, 15 February 2014, Pages 87–93
نویسندگان
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