起订量:
Dionex BorateTrap 硼酸盐捕获色谱柱
中级会员第8年
代理商经营理念::“诚实守信、专业技术、优质服务”
北京豫维科技有限公司是一家服务于色谱、光谱、质谱、实验室等技术服务的供应商,专门为国内的化学分析用户提供专业的实验室设计、仪器配备、耗材供应、分析方法开发和技术咨询等服务。 公司有着多年的经验积累,我们以优质的服务为您提供帮助! 我们秉承:“诚实守信、专业技术、优质服务”。我司主要经营品牌:安捷伦Agilent、岛津Shimadzu/GL Sciences 、铂金埃尔默PE、热电-赛默飞ThermoFisher 、戴安Dionex、沃特世Waters 、瑞思泰康Restek 、杰斯特 GS-Tek、 菲罗门Phenomenex、德国MN、 美国VICI 、澳大利亚SGE、沃森wasson-ece、光谱Spectra/Linde 、液化空气Scott/Air Liquide、Entech 采样罐等品牌。
对于使用HPAE-PAD检测IC碳水化合物分析中*的性能,使用的Thermo Scientific戴安BorateTrap在线捕获柱除去硼酸盐污染。当放置洗脱液泵和注射阀,陷阱上的碳水化合物分析物的效率或保留时间没有影响之间。的戴安BorateTrap柱消除了甘露糖,果糖,以及从硼酸污染引起糖醇峰拖尾。
Dionex BorateTrap 硼酸盐捕获色谱柱
订货信息:
Dionex BorateTrap 硼酸盐捕获柱
Borate Trap Column | 047078 |
The BorateTrap™ is an in-line trap column, and is recommended for optimal performance during carbohydrate analysis.
In-line trap column removes borate contamination for HPAE-PAD.
Eliminates peak tailing for mannose, fructose, and sugar alcohols resulting from borate contamination.
Borate contamination in eluents can cause a significant loss of peak efficiency, especially for mannose, fructose, and reduced monosaccharides. If borate is present in the eluent, it binds both to the anion-exchange column and to the carbohydrate analytes. The carbohydrate-borate complex is less efficiently eluted from the anion-exchanger than is the carbohydrate, resulting in peak tailing, particularly where vicinal cis hydroxyl groups are present, such as for mannose and sugar alcohols. The BorateTrap eliminates peak tailing for mannose, fructose, and reduced monosaccharides, resulting from contamination of the eluent from borate. Therefore, the BorateTrap is highly recommended for optimal performance during carbohydrate analysis.
The BorateTrap is a 4 × 50 mm column placed between the eluent pump and the injection valve to remove borate contamination from eluents used for HPAE-PAD. Because it is placed before the injection valve, it has no effect on the efficiencies or retention times of the carbohydrate analytes. This column is packed with a 20-μm high-capacity resin that has high selectivity for borate. The resin used in the BorateTrap is functionalized with a polyol capable of complexing borate in the presence of hydroxide. Borate is a known contaminant in laboratory water supplies. In chromatography, borate contamination of HPLC eluents may be a result of degrading deionized water systems or as leachate from borosilicate glassware.