计算溶液所需的质量、体积或浓度。
BioReagent,生物染色剂,用于显微镜 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,室温。低温运输 。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。
黏液物质染色有多种方法,如AB-PAS染色、黏液HID-AB染色、标准阿利新蓝染色等,以上方法大多是利用阿利新蓝 (Alcian)属于阳离子染料可与酸性基团结合,也即阿尔辛蓝与组织内含有的阴离子基团如羧基和硫酸根形成不溶性复合物这一原理。
黏蛋白染色液 (温和甲基化法)属于化学修饰和阻断法的一种,其原理是利用含酒精的碱性溶液裂解耐酶唾液酸中的O-乙酰基,O-乙酰基的去除及唾液酸侧链羟基的形成恢复了唾液酸对PAS的反应性;Alcian染色液pH值为2.5时组织内的羧基电离,带有一个负电荷,与阿利新蓝中的阳离子形成盐键,使带有羧基的组织 (如蛋白多糖/透明质酸以及上皮酸性黏蛋白)染色,主要用于鉴别黏蛋白中的酸性基团。该试剂仅用于科研领域,不适用于临床诊断或其他用途。
自备材料:
1、系列乙醇、蒸馏水、去离子水、二甲苯或环保脱蜡透明液、封片胶
2、恒温箱、显微镜
操作步骤(仅供参考):
1、两张阳性对照片和两张实验切片均脱蜡至水。
2、将一张阳性对照片和一张实验片入酸性甲醇溶液,37℃孵育4h;另外的一张阳性对照片和一张实验片仅用去离子水37℃孵育4h。流水冲洗5min。
3、Alcian染色液染色15-30min。流水冲洗。
4、梯度乙醇脱水,二甲苯或脱蜡透明液透明,中性树胶封片。
染色结果:
未处理的硫酸黏蛋白、硫酸蛋白多糖、唾液粘蛋白、透明质酸: 蓝色
处理后的切片: 淡蓝色
注:处理后的残存的任何颜色都是由于存在硫酸黏蛋白和 (或)硫酸蛋白多糖。
注意事项:
1、处理时间超过4h有可能导致硫酸根水解。
2、需要阳性对照片以便验证甲基化程序的有效性。
3、为了您的安全和健康,请穿实验服并戴一次性手套操作。
There are various methods for staining mucous substances, such as AB-PAS staining, mucin HID-AB staining, and standard Alcian blue staining. Most of these methods rely on the principle that Alcian blue, a cationic dye, can bind to acidic groups-specifically, Alcian blue forms insoluble complexes with anionic groups (e.g., carboxyl groups and sulfate groups) present in tissues.
Mucin Staining Solution (Mild Methylation Method) belongs to the category of chemical modification and blocking methods. Its principle is to use an alcohol-containing alkaline solution to cleave the O-acetyl groups in enzyme-resistant sialic acid. The removal of O-acetyl groups and the formation of hydroxyl groups on the side chains of sialic acid restore the reactivity of sialic acid to PAS staining. When the pH value of Alcian staining solution is 2.5, the carboxyl groups in tissues undergo ionization and carry a negative charge, forming salt bonds with the cations in Alcian blue. This enables the staining of tissues containing carboxyl groups (e.g., proteoglycans/hyaluronic acid and epithelial acidic mucins), and the solution is mainly used to identify acidic groups in mucins. This reagent is for research use only and not intended for clinical diagnosis or other purposes.
Materials to Be Prepared by the User
1. Graded ethanol solutions, distilled water, deionized water, xylene or environmentally friendly dewaxing-clearing solution, mounting medium
2. Incubator, microscope
Operating Procedures (For Reference Only)
1. Dewax two positive control sections and two experimental sections to water.
2. Place one positive control section and one experimental section in Acidic Methanol Solution and incubate at 37℃ for 4 hours; incubate the remaining one positive control section and one experimental section in deionized water at 37℃ for 4 hours only. Rinse with running water for 5 minutes.
3. Stain with Alcian Staining Solution for 15-30 minutes. Rinse with running water.
4. Dehydrate with graded ethanol solutions, clear with xylene or dewaxing-clearing solution, and mount with neutral gum.
Staining Results
Untreated sulfated mucins, sulfated proteoglycans, sialomucins, and hyaluronic acid: Blue
Treated sections: Light blue
Note: Any residual color in the treated sections is due to the presence of sulfated mucins and/or sulfated proteoglycans.
Precautions
1. Incubation time exceeding 4 hours may cause hydrolysis of sulfate groups.
2. Positive control sections are required to verify the effectiveness of the methylation procedure.
3. For your safety and health, wear a lab coat and disposable gloves during operation.
| M1508670 | Component | 2×50 mL | Storage |
| M1508670A | 酸性甲醇溶液 | 50 mL | RT. |
| M1508670B | Alcian染色液 | 50 mL | 2-8℃. Store in the dark. |
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | M1508670 | |
| 分析证书 | M1508670 |
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