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 20 篇同行评审文献引用。
脂质 (Lipid)是中性脂肪、类脂及其衍生物的总称,其共同的物理特性是不溶于水, 易溶于有机溶剂 (如乙醇、乙醚等)。人体的脂肪主要有两种:1、储存脂肪,如中性脂 肪,主要分布于皮下、肾、胰腺等部位。2、结构脂肪,如类脂 (磷脂、糖脂、胆固醇 等),主要分布于细胞内。中性脂肪 (Neutral fat)是由三分子脂肪酸和一分子甘油组成的脂类,呈中性。中性脂肪染色经常采用苏丹Ⅱ、苏丹Ⅲ、苏丹Ⅳ、苏丹黑B、油红O法等。传统方法采用苏丹染料,最近发现偶氮染料油红O更适合脂肪的染色。油红O是很强的脂溶剂和染脂剂,较易与甘油三脂结合呈小脂滴状,与磷脂结合力稍差。
苏丹黑B染色液 (细胞专用)简称SBB染色溶液,其原理是苏丹黑B属于脂溶性染料,可溶解于细胞质内的含脂结构中,使脂肪、磷脂、胆固醇等脂类现棕黑或深黑色,并定位于细胞质。神经磷脂、脑磷脂等行苏丹黑B染色后,呈阳性反应;肾透明细胞癌、卵巢纤维瘤等行苏丹黑 染色后,呈阴性反应。
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自备材料:
1、载玻片
2、70%乙醇
3、蒸馏水
4、显微镜
操作步骤(仅供参考):
1、 制备新鲜骨髓、血液涂片,入 SBB Fixative 固定。
2、 取出涂片,放于流通的空气中。
3、 入新配制好的 SBB Stain,室温浸染。
4、 入 Sudan black B stain,浸染。
5、 乙醇洗去多余染液,蒸馏水浸洗。
6、 Wright Stain 染色。
染色结果:
中性脂肪:棕黑色或深黑色颗粒
细胞核:红色
粒细胞系除早期原粒细胞阴性外,分化好的原粒细胞以下阶段细胞随细胞成熟而阳性反应增强,衰老中性粒细胞反应程度减弱单核细胞系弱阳性,淋巴细胞系为阴性。浆细胞及巨核细胞均为阴性。嗜酸性粒细胞和 Auer 小体呈强阳性反应。
阴性对照:取相同样本入乙醚、氯仿、丙酮等量混合液,溶解一般脂肪,然后用预冷丙酮溶解磷脂,再进行 SBB 染色,结果呈阴性反应。
注意事项:
1、 标本不宜采用含有乙醇的固定液。
2、 苏丹染料容易褪色,应密闭保存。
3、 应防止染料发生沉淀,可置于血平皿内,两端放置小竹签,血膜向下架空染色。
4、 神经磷脂、脑磷脂SBB染色呈阳性,有利于对类脂质沉积病的诊断。
5、 为了您的安全和健康,请穿实验服并戴一次性手套操作。
Lipids are a general term for neutral fats, lipids, and their derivatives. Their common physical characteristic is insolubility in water and solubility in organic solvents (e.g., ethanol, ether, etc.). There are two main types of fats in the human body: Storage fats: such as neutral fats, mainly distributed in subcutaneous tissues, kidneys, pancreas, and other parts. Structural fats: such as lipids (phospholipids, glycolipids, cholesterol, etc.), mainly distributed in cells. Neutral fats are lipids composed of three molecules of fatty acids and one molecule of glycerol, and they are neutral in nature. Staining methods for neutral fats often include Sudan Ⅱ, Sudan Ⅲ, Sudan Ⅳ, Sudan Black B, and Oil Red O staining. Traditional methods use Sudan dyes, but recent studies have found that the azo dye Oil Red O is more suitable for fat staining. Oil Red O is a strong lipid solvent and lipochrome; it binds easily to triglycerides to form small lipid droplets, but has a relatively weak binding affinity for phospholipids.
Sudan Black B Staining Solution (Cell-specific), abbreviated as SBB Stain, works on the principle that Sudan Black B is a liposoluble dye. It can dissolve in lipid-containing structures in the cytoplasm, staining fats, phospholipids, cholesterol, and other lipids brown-black or dark black and localizing them in the cytoplasm. Sphingomyelin, cephalin, and other substances show positive reactions after SBB staining; conversely, clear cell renal cell carcinoma, ovarian fibroma, and other tissues show negative reactions after SBB staining.
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Materials to be prepared by the user:
1. Glass slides
2. 70% ethanol
3. Distilled water
4. Microscope
Operating Procedures (For Reference Only)
1. Prepare smears of fresh bone marrow or blood, and fix them with SBB Fixative.
2. Take out the smears and air-dry them in circulating air.
3. Immerse the smears in freshly prepared SBB Stain and incubate at room temperature.
4. Transfer the smears to Sudan Black B Stain for further staining.
5. Wash away excess stain with ethanol, followed by rinsing with distilled water.
6. Perform counterstaining with Wright Stain.
Staining Results
Neutral Fats: Brown-black or dark black granules
Cell Nuclei: Red
In the granulocyte series, except for early myeloblasts (negative), cells from the well-differentiated myeloblast stage onwards show progressively stronger positive reactions with cell maturation. Senescent neutrophils show weakened positive reactions. Monocytes show weak positive reactions. Lymphocytes show negative reactions. Plasma cells and megakaryocytes are both negative. Eosinophils and Auer bodies show strong positive reactions.
Negative Control: Treat the same sample with a mixture of equal volumes of ether, chloroform, and acetone to dissolve general fats; then use pre-cooled acetone to dissolve phospholipids. Subsequent SBB staining of the treated sample should yield negative results.
Precautions
1. Do not use ethanol-containing fixatives for specimen preservation.
2. Sudan dyes are prone to fading and should be stored in sealed containers.
3. To prevent dye precipitation, place the smears in a petri dish with small bamboo sticks at both ends, and stain the smears with the blood film facing downward (suspended above the stain solution).
4. Sphingomyelin and cephalin yield positive results with SBB staining, which is helpful for the diagnosis of lipid storage diseases.
5. For your safety and health, wear a lab coat and disposable gloves during operation.
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P405: 密闭存放
P501: 将内容物/容器处理到。。。
P281: 根据需要使用个人防护设备。
P203: 使用前,获取、阅读并遵守所有安全说明。
P318: 如果暴露或担心,请就医。
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | S1508441 |
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