计算溶液所需的质量、体积或浓度。
BioReagent,适用于微生物学 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
避光,室温。常规运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
猪胆盐是由猪胆汁精制而成的一种胆汁酸钠盐,其原理为降低培养基与菌膜界面上的表面张力,并使细胞膜紊乱,从而加速细胞自溶。猪胆盐在pH值6.5以下会有胆酸析出物,在菌落周围形成沉淀环,使菌落色素不易向外扩散,更有利于菌落的鉴别。用于抑制革兰氏阳性菌的生长,是微生物培养基常用的选择性抑制剂。
性能指标
| 检验项目 | 标准要求 |
| 性状 | 类白色粉末,有刺激性苦味。 |
| 澄清度 | 水溶液澄清透明,无异物。 |
| pH值 | 8.0-10.0 |
| 胆酸含量 | ≥65.0% |
| 灼烧残渣 | ≤17.0% |
| 水分 | ≤5.0% |
注意事项:
1. 称量时注意粉尘,佩戴口罩操作以避免引起呼吸道系统不适。
2. 干粉使用后立即旋紧瓶盖,避免吸潮结块,贮存于避光干燥处。
3. 未开封产品保质期三年,开封后根据存放条件的不同保质时间存在一定的差异。
Porcine Bile Salts is a kind of sodium bile salt refined from pig bile. It works by reducing the surface tension at the interface between the culture medium and bacterial pellicle, disturbing cell membranes, and thus accelerating bacterial autolysis. When the pH value is below 6.5, porcine bile salt will produce cholic acid precipitates, forming a precipitation ring around colonies. This prevents the outward diffusion of colony pigments and facilitates colony identification. It is widely used as a selective inhibitor in microbial media to inhibit the growth of Gram-positive bacteria.
Performance Indicators
| Test Item | Standard Requirement |
| Appearance | Off-white powder with a pungent bitter taste. |
| Clarity | Aqueous solution is clear and free of foreign impurities. |
| pH | 8.0-10.0 |
| Cholic Acid Content | ≥65.0% |
| Residue on Ignition | ≤17.0% |
| Moisture | ≤5.0% |
Precautions:
1. Take precautions against dust during weighing. Wear a mask to avoid respiratory discomfort.
2. Tighten the bottle cap immediately after use of the powder to prevent moisture absorption and caking. Store in a dark and dry place.
3. The shelf life of unopened products is three years. The shelf life of opened products varies depending on storage conditions.
通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!
| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | P1522343 | |
| 分析证书 | P1522343 |
我们的级别选择指南涵盖了目录中所有的变体的纯度、稳定剂状态和应用适用性。
查看 BioReagent 级别指南 → 查看 Suitable for microbiology 级别指南 →