Postcolumn derivatization of amino acids using reaction flow chromatography columns with fluorescence detection: A fast new approach to selective derivatization techniques. Issue 2 (20th January 2017)

• Record Type: Journal Article
• Authors: Pravadali-Cekic, Sercan; Jones, Andrew; Kazarian, Artaches A.; Paull, Brett; Soliven, Arianne; Ritchie, Harald; Camenzuli, Michelle; Leung, Lisa; Dennis, Gary R.; Shalliker, R. Andrew
• Is Part Of: Journal of liquid chromatography & related technologies. Volume 40:Issue 2(2017)
• Page Start: 83
• Page End: 92
• Publication Date: 2017-01-20
• Subjects: Amino acids -- fluorescamine -- fluorescence detection -- multiplexed detection -- postcolumn derivatization -- reaction flow chromatography; Liquid chromatography -- Periodicals; Chromatographic analysis -- Periodicals; Separation (Technology) -- Periodicals; Biotechnology -- Periodicals; Chromatography, Liquid -- Periodicals; 543.8405
• DOI: 10.1080/10826076.2017.1285312
• Languages: English
• ISSNs: 1082-6076

Abstract

ABSTRACT: Reaction flow (RF) chromatography with fluorescamine reagent and fluorescence detection (FLD) was used for the analysis of amino acids. The performance of RF chromatography was tested against several optimized conventional postcolumn derivatization (PCD) methods. RF columns achieved greater sensitivity compared to conventional PCD methods, without the need for reaction loops, which resulted in more efficient separations. The RF-PCD method also achieved limits of detection (LOD) from the low picomole to subnanomole range. The calibration data of the RF-PCD technique yielded R 2 ≥ 0.99 and % relative standard deviation in peak areas ranging from 0.34% to 5%. Through reaction flow chromatography, multiplexed detection was also achieved allowing the monitoring and analysis of derivatized and nonderivatized flow streams simultaneously. GRAPHICAL ABSTRACT: