蒽硼酸频哪醇酯

用于制备X射线荧光分析法的样品【客户可订制、提供试用样品】 C-0600-00 LITHIUM TETRABORATE, PURE, 1 kg 四硼酸锂, 纯, 1千克 C-0600-10 LITHIUM TETRABORATE, POWDER FLUX, PURE, 500g 四硼酸锂, 助溶剂粉, 纯, 500克 C-0600-60 LITHIUM TETRABORATE/LIBR 99.50/0.50, PURE, 1kg 四硼酸锂/溴化锂 99.50/0.50, 纯, 1千克 C-0600-70 LITHIUM TETRABORATE/LiI 99.50/0.50, PURE, 1kg 四硼酸锂/碘化锂 99.50/0.50, 纯, 1千克 C-0601-00 LITHIUM TETRABORATE, ULTRA PURE, 1 kg 四硼酸锂, 超纯, 1千克 C-0601-10 LITHIUM TETRABORATE, POWDER FLUX, ULTRA PURE, 500g 四硼酸锂, 助溶剂粉, 超纯, 500克 C-0601-60 LITHIUM TETRABORATE/LIBR 99.50/0.50, ULTRA PURE, 1kg 四硼酸锂/溴化锂 99.50/0.50, 超纯, 1千克 C-0601-70 LITHIUM TETRABORATE/LiI 99.50/0.50, ULTRA PURE, 1kg 四硼酸锂/碘化锂 99.50/0.50, 超纯, 1千克 C-0610-00 LITHIUM METABORATE, PURE, 1 kg 偏硼酸锂, 纯, 1千克 C-0611-00 LITHIUM METABORATE, ULTRA PURE, 1 kg 偏硼酸锂, 超纯, 1千克 C-0620-00 LIT/LIM 50/50, PURE, 1 kg 四硼酸锂/偏硼酸锂 50/50, 纯, 1千克 C-0620-60 LIT/LIM/LIBR 49.75/49.75/0.50, PURE, 1kg 四硼酸锂/偏硼酸锂/溴化锂 49.75/49.75/0.50, 纯, 1千克 C-0620-70 LIT/LIM/LiI 49.75/49.75/0.50, PURE, 1kg 四硼酸锂/偏硼酸锂/碘化锂 49.75/49.75/0.50, 纯, 1千克 C-0621-00 LIT/LIM 50/50, ULTRA PURE, 1 kg 四硼酸锂/偏硼酸锂 50/50, 超纯, 1千克 C-0621-60 LIT/LIM/LIBR 49.75/49.75/0.5, ULTRA PURE, 1 kg 四硼酸锂/偏硼酸锂/溴化锂 49.75/49.75/0.5, 超纯, 1千克 C-0621-70 LIT/LIM/LiI 49.75/49.75/0.5, ULTRA PURE, 1 kg 四硼酸锂/偏硼酸锂/碘化锂 49.75/49.75/0.5, 超纯, 1千克 C-0630-00 SODIUM TETRABORATE, PURE, 1 kg 四硼酸钠, 纯, 1千克 C-0644-00 LIT/LIM 67/33, PURE, 1 kg 四硼酸锂/偏硼酸锂 67/33, 纯, 1千克

纳微推出新一代硼酸亲和填料，它是利用硼酸与顺式二羟基化合物之间的共价配位作用实现分离纯化。在碱性条件下，硼酸基团能与顺式二羟基结构作用，生成稳定的五元环络合物，分子被介质吸附；在酸性条件下络合被打开，分子从介质上解吸附。硼酸亲和层析介质可以用于含有顺式二羟基化合物的分离纯化，如糖蛋白、核苷、核苷酸、糖类等的分离纯化。UniPB-80L硼酸亲和层析介质的优势单分散微球基质，低反压，高线性流速，提高生产效率高配基密度，提供更高的操作载量使用寿命长，生产成本低硼酸亲和层析介质基本参数 *对于特殊规格，提供专业化客户定制订货信息 *更多规格型号或定制，请联系业务代表

Dionex BorateTrap 硼酸盐捕获柱 对于使用HPAE-PAD检测IC碳水化合物分析中最佳的性能，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 硼酸盐捕获柱订货信息：Borate Trap Column047078 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.Effect of Borate and the BorateTrap Column on Monosaccharide Peak Symmetry.Data SheetsCarboPac MA1 Column for Carbohydrate Alditol and Aldose Analysis Data SheetCarboPac PA1 and PA10 Columns for Mono- and Disaccharide Analysis Data SheetCarboPac PA20 Column Data SheetManualsBorateTrap Column ManualCarboPac MA1, PA1, PA10, and PA100 Analytical Columns ManualCarboPac PA20 Analytical Column ManualTechnical NotesTN 40: Glycoprotein Monosaccharide Analysis Using HPAE-PAD with Eluent Generation