计算溶液所需的质量、体积或浓度。
BioReagent,用于蛋白分析 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
2-8°C储存,避光。低温运输 。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 0 篇同行评审文献引用。
李凡他氏试验,又称李凡他(Rivalta)反应, 李凡他(Rivalta)试验,即浆液粘蛋白定性实验。原理是浆液粘蛋白是多糖和蛋白质形成的复合物.其等电点是 PH3-5,亦称为酸性糖蛋白,当其在大量稀醋酸中时,呈白色沉淀,即为阳性。用于定性检测浆膜腔积液中是否含有浆膜黏蛋白检测原理是在酸性条件下,浆膜黏蛋白可产生白色雾状沉淀,即 Rivalta 反应。该试剂有一定的腐蚀性,请注意防腐。
操作步骤(仅供参考):
100 mL的量桶内装入 100 mL 的试液,滴入 1~2 滴浆膜腔穿刺液,看有否白色云雾状混浊下降到 50 mL刻度以下。如是则为阳性。
注意事项:
1、为了您的安全和健康,请穿实验服并戴一次性手套操作。
2、本产品仅用于科研,严禁他用。
Rivalta test, also known as Rivalta reaction, is a qualitative test for serous mucin. The principle is that serous mucin is a complex composed of polysaccharides and proteins. Its isoelectric point is pH 3–5, and it is also called acid glycoprotein. A white precipitate will form when it is added to a large volume of dilute acetic acid, which indicates a positive result. It is used for qualitative detection of serous mucin in serous cavity effusion. The detection principle is that serous mucin produces a white cloudy precipitate under acidic conditions, namely the Rivalta reaction. This reagent is corrosive. Please take anti-corrosion precautions.
Operating Procedure (For Reference Only):
Add 100 mL of reagent into a 100 mL graduated cylinder, drop 1–2 drops of serous cavity puncture fluid, and observe whether a white cloudy turbidity sinks below the 50 mL mark. A positive result is confirmed if this phenomenon occurs.
Precautions:
1. For your safety and health, wear a lab coat and disposable gloves during operation.
2. This product is for research use only. Do not use it for other purposes.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | R1528796 | |
| 分析证书 | R1528796 |