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。
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。
负染色又称阴性染色,是由Hall发现的相对于普通染色(即正染色)而言的染色技术。其原理在于利用重金属盐包绕低电子密度的样品,增强样本四周的电子密度,造成细微结构之间的质量-厚度差异,增强散射吸收反差,使样品在黑暗的背景上呈现明亮的结构。负染色液有磷钨酸、钼酸铵、印度墨汁等,其中最常用的是1~3%磷钨酸。
磷钨酸乙醇溶液(3%)主要由磷钨酸和乙醇组成,其中磷钨酸是精子成熟度染色、精子核组蛋白染色的有效成分。该试剂仅用于科研领域,不适用于临床诊断或其他用途。
Negative staining, also known as negative contrast staining, is a staining technique discovered by Hall as opposed to conventional staining (i.e., positive staining). The principle involves surrounding low-electron-density samples with heavy metal salts to increase the electron density around the sample, thereby creating mass-thickness differences among fine structures and enhancing the scattering-absorption contrast. This allows the sample to appear as bright structures against a dark background. Common negative staining agents include phosphotungstic acid, ammonium molybdate, and India ink, among which 1–3% phosphotungstic acid is the most frequently used.
Phosphotungstic Acid Ethanol Solution (3%) is primarily composed of phosphotungstic acid and ethanol. Phosphotungstic acid serves as the active component for staining sperm maturity and sperm nuclear histones. This reagent is intended for research purposes only and is not suitable for clinical diagnosis or other applications.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | E1510324 | |
| 分析证书 | E1510324 |