计算溶液所需的质量、体积或浓度。
BioReagent,天然 级 提供 ≥95%(dry basis) 纯度,适用于对基线干扰要求严格的色谱和分析工作流程。
室温。常规运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
在色谱分析、有机合成和交叉偶联反应领域已被 122 篇同行评审文献引用。
来自山毛榉树的高度纯化的木聚糖(≥95%)适用于研究、生物化学酶测定以及分析测试领域。可作为桦木多糖替代物,用于β‑木聚糖酶在 DNSA 还原糖测定中的底物使用。
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溶解方法(用于配制1.0% w/v 溶液)
准确称取1.0g木聚糖于120mL干燥的耐热玻璃烧杯中。加入4mL 95%乙醇润湿样品。放入磁力搅拌子,然后在搅拌浆液的同时加入90mL ddH₂O,并将烧杯置于带加热功能的磁力搅拌器上。将加热设置调至120°C并剧烈搅拌。用铝箔松散地盖住烧杯口,继续剧烈搅拌。当溶液开始沸腾时关闭加热,但继续搅拌直至木聚糖完全溶解(约需10分钟)。将溶液体积调整至100mL(由于微量蛋白质的存在,此溶液可能略有乳光)。
Highly purified xylan (≥95%) from beechwood is suitable for research, biochemical enzyme assays, and analytical testing applications. It can be used as a substitute for birchwood xylan as a substrate for β-xylanase in DNSA reducing sugar assays.
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Dissolution Method (for preparing a 1.0% w/v solution)
Accurately weigh 1.0 g of xylan into a 120 mL dry heat-resistant glass beaker. Add 4 mL of 95% ethanol to wet the sample. Place a magnetic stir bar into the beaker, then add 90 mL of ddH₂O while stirring the slurry, and place the beaker on a magnetic stirrer with heating capability. Set the heating control to 120°C and stir vigorously. Loosely cover the beaker mouth with aluminum foil and continue stirring vigorously. When the solution begins to boil, turn off the heat, but continue stirring until the xylan is completely dissolved (approximately 10 minutes). Adjust the volume of the solution to 100 mL (the solution may appear slightly opalescent due to the presence of trace proteins).