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。
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。
含铁血黄素 (Hemosiderin)是一种血红蛋白源性色素,为金黄色或棕黄色颗粒,因其含铁,且为金黄色,故称为含铁血黄素。当红细胞被巨噬细胞吞噬后,在溶酶体酶的作用下,血红蛋白被分解为不含铁的橙色血质和含铁的含铁血黄素。Perls 普鲁士蓝反应 (Prussian blue reaction)又称为含铁血黄素染色,即经过亚铁氰化钾和稀酸处理后可以产生蓝色,常见于吞噬细胞或间质内,主要显示三价铁盐。另外,Lillie法也是显示三价铁的很好的方法,其特异性较好。
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使用方法
1、组织固定于10%中性福尔马林或其他碱性固定液,常规脱水包埋。
2、切片厚度4μm,常规脱蜡至水。
3、蒸馏水水洗1min。
4、切片入Lillie stain (见注意事项 4),浸染 25-30min。
5、蒸馏水充分冲洗2-5min。
6、入核固红染色液,淡染细胞核5-10min。
7、蒸馏水冲洗1-5s。
8、常规脱水透明,中性树胶封固。
染色结果
三价铁: 深普鲁士蓝
细胞核、其他组织: 红色
阴性对照 (可选): 取相同对照切片脱蜡至水。结果为阴性。
注意事项
1、该染色法适用于石蜡切片、冰冻切片和树脂切片,切片脱蜡应尽量干净。
2、组织固定常采用10%中性福尔马林,经普通福尔马林长期固定后,组织会有损伤。避免使用酸性固定剂,铬酸盐处理也会妨碍铁的保存。
3、整个操作过程中容器要干净,避免用金属铁制品,洗切片和容器时以蒸馏水为宜,因普通水内含铁质。
4、Lillie stain染色时,应根据样本情况调整着色时间。
5、所有切片都应使用同一个阳性对照切片,选择适合的对照非常重要。尸检肺组织是一个很好的对照,包含相当数量的铁阳性巨噬细胞 (心衰细胞)。
6、系列乙醇应经常更换新液。
7、冰冻切片和细胞的染色,最好根据具体情况摸索实验条件。
8、为了您的安全和健康,请穿实验服并戴一次性手套操作。
Hemosiderin is a hemoglobin-derived pigment that exists as golden yellow or brownish yellow granules. It is named hemosiderin due to its iron content and golden yellow color. When red blood cells are phagocytosed by macrophages, hemoglobin is decomposed into iron-free hematoidin and iron-containing hemosiderin under the action of lysosomal enzymes. The Perls Prussian blue reaction, also known as hemosiderin staining, produces a blue color after treatment with potassium ferrocyanide and dilute acid. This reaction is commonly observed in phagocytes or interstitium and is primarily used to demonstrate ferric iron salts. In addition, the Lillie method is also an excellent and highly specific technique for detecting ferric iron.
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Operating Procedure
1. Fix the tissue in 10% neutral formalin or other alkaline fixatives, followed by routine dehydration and embedding.
2. Cut sections at a thickness of 4 μm and perform routine dewaxing to water.
3. Rinse the sections with distilled water for 1 minute.
4. Immerse the sections in Lillie Stain (refer to Precaution 4) and incubate for 25-30 minutes.
5. Rinse thoroughly with distilled water for 2-5 minutes.
6. Transfer to Nuclear Fast Red Staining Solution and lightly stain the cell nuclei for 5-10 minutes.
7. Rinse with distilled water for 1-5 seconds.
8. Perform routine dehydration and clearing, then mount the sections with neutral balsam.
Staining Results
Ferric iron: Deep Prussian blue
Cell nuclei and other tissues: Red
Negative control (optional): Take a corresponding control section, dewax to water, and the result should be negative.
Precautions
1. This staining method is suitable for paraffin sections, frozen sections, and resin sections. Ensure thorough dewaxing of the sections.
2. Tissues are usually fixed in 10% neutral formalin. Prolonged fixation in regular formalin may cause tissue damage. Avoid using acidic fixatives; chromate treatment can also interfere with iron preservation.
3. Use clean containers throughout the operation and avoid iron metal utensils. Rinse the sections and containers with distilled water, as tap water may contain iron impurities.
4. Adjust the incubation time with Lillie Stain according to the characteristics of the sample.
5. Use the same positive control section for all test sections; selecting an appropriate control is crucial. Autopsied lung tissue, which contains a substantial number of iron-positive macrophages (heart failure cells), is an excellent control.
6. Replace the graded ethanol solutions regularly with fresh ones.
7. For staining frozen sections and cells, optimize the experimental conditions according to the specific sample type.
8. For your safety and health, wear a lab coat and disposable gloves during operation.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | L1508457 |
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