کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1220811 1494621 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Amino acid analysis using chromatography–mass spectrometry: An inter platform comparison study
ترجمه فارسی عنوان
تجزیه و تحلیل اسید آمینه با استفاده از اسپکترومتری جرمی کروماتوگرافی: یک مطالعه مقایسه ای بین پلت فرم
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Comparison of three state-of-the art analysis platforms for amino acid analysis.
• Detailed comparison of analytical figures of merit.
• Guidance of the reader to the platform most valuable for his research question.

The analysis of amino acids has become a central task in many aspects. While amino acid analysis has traditionally mainly been carried out using either gas chromatography (GC) in combination with flame ionization detection or liquid chromatography (LC) with either post-column derivatization using ninhydrin or pre-column derivatization using o-phthalaldehyde, many of today’s analysis platforms are based on chromatography in combination with mass spectrometry (MS). While derivatization is mandatory for the GC-based analysis of amino acids, several LC platforms have emerged, particularly in the dawn of targeted metabolite profiling using hydrophilic interaction liquid chromatography (HILIC) coupled to MS, allowing the analysis of underivatized amino acids. Among the numerous analytical platforms available for amino acid analysis today, we here compare three prominent approaches, being GC–MS and LC–MS after amino acid derivatization using chloroformate and HILIC–MS of underivatized amino acids. We compare and discuss practical issues as well as performance characteristics, e.g., the use of 13C-labeled internal standards, of the different platforms and present data on their practical implementation in our laboratory. Finally, we compare the real-life applicability of all three platforms for a complex biological sample. While all three platforms are very-well suited for the analysis of complex biological samples they all show advantages and disadvantages for some analytes as discussed in detail in this manuscript.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 114, 10 October 2015, Pages 398–407
نویسندگان
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