To demonstrate the application of a software-based method development approach for the advanced separation of all known water-soluble vitamins in reversed-phase mode with ultraviolet detection. To achieve transferability of the predicted method with excellent agreement of predicted and experimental retention times.
To describe a workflow for the simultaneous quantitative analysis of fatsoluble and water-soluble vitamins in drinks and food supplement tablets using the Thermo Scientific™ Vanquish™ Flex Duo UHPLC system and the Thermo Scientific™ Acclaim™ Polar Advantage II column.
The Acclaim PA2 column can successfully analyze a sample with a mobile phase from 100% aqueous to 100% organic solvent, thereby allowing water- and fat-soluble vitamins to be separated in a single analysis. The Dionex UltiMate 3000 system and Chromeleon software facilitate this analysis by allowing multiple injections during the same run. This method is judged accurate, based on analysis of multivitamin dry syrup and a spiked placebo product. The Acclaim PA2 column, combined with an UltiMate 3000 system, is an excellent solution for vitamin determinations.
本文采用 Ultimate 3000 液相系统，发展了一种食盐中叶酸检测的方法： • 方法得到的叶酸色谱峰峰型尖锐、对称，保留时间适宜 • 方法线性范围较宽，线性关系良好，可实现叶酸的定量分析； • 方法具有良好的保留时间和峰面积重复性，证明该方法稳定性较好。
Many fast UHPLC and traditional HPLC methods suffer under delays caused by the need to wash and equilibrate the column after the separation. Typically we see 20%–40% of the runtime used up by these essential steps within a gradient method. Here a solution utilizing a dual-gradient pump setup with column switching capabilities to overcome these delays without the need of redeveloping existing methods is offered. The Thermo Scientific™ Dionex™ UltiMate™ 3000 LC Dual System with the Viper Tandem Operation kit allows to sppeding up gradients in LC and UHPLC assays.
