计算溶液所需的质量、体积或浓度。
阿利新蓝 (Alcian)又称爱先蓝或阿尔辛蓝等,是一种类铜钛花青共轭染料,最初用于纺织纤维染色。这种阳离子染料与酸性基团结合,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。阿利新蓝由中央含铜的酞菁环与四个异硫脲基通过硫醚键相连而成,该异硫脲基呈中度碱性,使阿利新蓝带阳离子。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,使带有羧基的酸性黏液物质(硫酸黏蛋白和唾液黏蛋白)染色。
阿利新蓝染色液 (pH2.5)又称标准阿利新蓝染色液,利用染液的不同pH值可区分粘液物质的类属,pH为1时,羧基 (COOH)不着色,硫酸基 (OSO3H)着色,pH为2.5时,羧基染色良好而硫酸粘液着色不佳,使硫酸黏蛋白和唾液黏蛋白着色。中性黏蛋白 (如胃黏膜和Brunner腺体部位的中性黏蛋白)不能与阿利新蓝反应。本试剂仅适用于科研领域,不适用于临床诊断或其他用途。
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自备材料:
1、系列乙醇
2、蒸馏水
操作步骤(仅供参考):
1、二甲苯脱蜡,通过梯度乙醇后,入蒸馏水再水化。
2、入阿利新蓝酸化液浸泡5min。
3、入阿利新蓝染色液浸染30min。
4、流水冲洗。
5、入核固红染色液,复染5-10min。流水冲洗。
6、梯度乙醇脱水,二甲苯透明,中性树胶封片。
染色结果:
酸性黏蛋白 (硫酸黏蛋白和唾液黏蛋白): 蓝色
蛋白多糖和透明质酸: 蓝色
细胞核: 红色
注意事项:
1、固定液采用10%中性福尔马林。
2、若要选择性鉴别硫酸黏蛋白和蛋白多糖,应使用pH值低 (pH=1.0)的阿利新蓝,即调pH值为1.0。染色程序与pH=2.5的阿利新蓝操作相同,染色时间应相应延长。
3、已开封试剂应在开封后6个月内使用完,每次用后应及时拧紧瓶盖,以免挥发或变质。
4、为了您的安全和健康,请穿实验服并戴一次性手套操作。
5、本产品仅供科研使用,严禁它用。
Alcian Blue, also known as Alician Blue or Alcyan Blue, is a copper - phthalocyanine conjugated dye originally used for textile fiber dyeing. As a cationic dye, it binds to acidic groups, namely, it forms insoluble complexes with anionic groups such as carboxyl groups and sulfate groups contained in tissues. Alcian Blue is composed of a central copper - containing phthalocyanine ring linked to four isothiourea groups via thioether bonds. The isothiourea groups are moderately basic, endowing Alcian Blue with cationic properties. At pH 2.5, carboxyl groups in tissues ionize and carry a negative charge, forming salt bonds with the cations in Alcian Blue, thus staining acidic mucous substances (sulfomucins and sialomucins) with carboxyl groups.
Alcian Blue Staining Solution (pH 2.5) is also called standard Alcian Blue Staining Solution. Different pH values of the staining solution can be used to distinguish the types of mucous substances. At pH 1, carboxyl groups (COOH) are not stained while sulfate groups (OSO₃H) are stained. At pH 2.5, carboxyl groups are well - stained but sulfated mucins are poorly stained, resulting in the staining of sulfomucins and sialomucins. Neutral mucins (such as those in gastric mucosa and Brunner's glands) do not react with Alcian Blue. This reagent is only applicable to scientific research and not for clinical diagnosis or other purposes.
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Materials to Be Prepared by Users
1. Graded ethanol solutions
2. Distilled water
Operating Procedures (for reference only)
1. Deparaffinize the sections with xylene, rehydrate them through graded ethanol solutions, and then transfer them into distilled water.
2. Immerse the sections in Alcian Blue Acidification Solution for 5 minutes.
3. Stain the sections in Alcian Blue Staining Solution for 30 minutes.
4. Rinse the sections with running water.
5. Counterstain the sections in Nuclear Fast Red Staining Solution for 5-10 minutes, followed by rinsing with running water.
6. Dehydrate the sections with graded ethanol solutions, clear them with xylene, and mount the sections with neutral balsam.
Staining Results
Acidic mucins (sulfomucins and sialomucins): Blue
Proteoglycans and hyaluronic acid: Blue
Cell nuclei: Red
Precautions
1. Use 10% neutral formalin as the fixative.
2. For the selective identification of sulfomucins and proteoglycans, Alcian Blue with a low pH value (pH=1.0) should be used, i.e., adjust the pH value to 1.0. The staining procedure is the same as that for Alcian Blue at pH=2.5, but the staining time should be appropriately extended.
3. Opened reagents should be used up within 6 months after opening. Tighten the bottle caps immediately after each use to avoid volatilization or deterioration.
4. For your safety and health, wear a lab coat and disposable gloves during operation.
5. This product is for research use only and shall not be used for other purposes.
| pH | 2.5 |
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | A774858 | |
| 分析证书 | A774858 | |
| 分析证书 | A774858 |
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