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,适用于微生物学 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 637 篇同行评审文献引用。
在一般的情况下,细菌易被碱性染料染色,碱性染料电离后显色离子带正电荷,易与带负电荷的被染物结合。由于细菌的等电点在pH 2~5之间,在碱性、中性、弱酸性的环境中细菌均带负电荷,易与带正电荷的染料结合而着色。常用的染料有碱性复红、结晶紫、美蓝等。
结晶紫 (Crystal violet) 又称甲紫,分子式为C₂₅H₃₀N₃Cl·9H₂O,分子量为407.98,CAS号为548-62-9。与甲基绿、中性红、亚甲兰、番红、苏木素、孔雀绿、甲基紫、碱性品红是目前常用的人工合成的碱性染料,可溶于水、乙醇和氯仿,不溶于乙醚,水溶液和乙醇溶液呈深紫色,遇浓硫酸显橙色。用作酸碱指示剂,pH变色范围0.1 (绿色) ~2.0 (蓝色)。在分析化学中用作非水溶液滴定指示剂,生物染色剂,比色测定中的显色剂。结晶紫也是细菌革兰氏染色中的重要染料。
操作步骤(仅供参考):
1、样品处理
①对于石蜡切片:
二甲苯中脱蜡5~10 min。
换用新鲜的二甲苯,再脱蜡5~10 min。
无水乙醇5 min。
90%乙醇2 min。
70%乙醇2 min。
蒸馏水2 min。
②对于冰冻切片:蒸馏水2 min。
③对于培养细胞:用4%多聚甲醛固定10min以上。蒸馏水洗涤2分钟。更换新鲜的蒸馏水,再洗涤2 min。
2、结晶紫染色
①结晶紫染色液染色5-10min,根据染色结果和要求调整时间。
②用蒸馏水或自来水充分洗涤,进行观察和拍照。
染色结果:
组织或细胞--深紫色
注意事项:
1、 结晶紫对人体有害,请注意适当防护。
2、 第一次使用本试剂时建议先取1~2个样品做预实验。
3、 为了您的安全和健康,请穿实验服并戴一次性手套操作。
4、本产品仅供科研实验,严禁他用。
Under normal circumstances, bacteria are easily stained with basic dyes. The chromogenic ions of basic dyes carry a positive charge after ionization and readily bind to negatively charged stained substances. Since the isoelectric point of bacteria ranges from pH 2 to 5, bacteria carry a negative charge in alkaline, neutral and weakly acidic environments, and are thus prone to combining with positively charged dyes for coloration. Commonly used dyes include basic fuchsin, crystal violet and methylene blue.
Crystal violet, also known as methyl violet, has a molecular formula of C₂₅H₃₀N₃Cl·9H₂O, a molecular weight of 407.98 and a CAS number of 548-62-9. Together with methyl green, neutral red, methylene blue, safranin, hematoxylin, malachite green, methyl violet and basic fuchsin, it is a commonly used synthetic basic dye at present. It is soluble in water, ethanol and chloroform, but insoluble in diethyl ether. Its aqueous and ethanol solutions appear deep purple, and turn orange when exposed to concentrated sulfuric acid. It is used as an acid-base indicator with a pH color change range of 0.1 (green) to 2.0 (blue), a non-aqueous titration indicator in analytical chemistry, a biological stain and a chromogenic agent in colorimetric determination. Crystal violet is also an important dye for Gram staining of bacteria.
Operating Procedures (For Reference Only):
1. Sample Preparation
① For paraffin sections:
Deparaffinize in xylene for 5–10 min.
Replace with fresh xylene and deparaffinize for another 5–10 min.
Treat with absolute ethanol for 5 min.
Treat with 90% ethanol for 2 min.
Treat with 70% ethanol for 2 min.
Rinse with distilled water for 2 min.
② For frozen sections:
Rinse with distilled water for 2 min.
③ For cultured cells:
Fix with 4% paraformaldehyde for at least 10 min.
Wash with distilled water for 2 min.
Replace with fresh distilled water and wash for another 2 min.
2. Crystal Violet Staining
① Stain with crystal violet staining solution for 5–10 min; adjust the time according to staining results and requirements.
② Wash thoroughly with distilled water or tap water, then observe and photograph.
Staining Result:
Tissues or cells – Deep purple
Precautions:
1. Crystal violet is harmful to the human body; proper protective measures are recommended.
2. It is advised to conduct a pre-experiment with 1–2 samples when using this reagent for the first time.
3. For your safety and health, wear a lab coat and disposable gloves during operation.
4. This product is for research use only and shall not be used for any other purposes.
H351: 怀疑引起遗传缺陷
H302: 吞食有害
H318: 造成严重的眼睛损伤
H400: 对水生生物有剧毒
H410: 对水生生物有剧毒并具有长期持续影响
P273: 避免释放到环境中。
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
P405: 密闭存放
P501: 将内容物/容器处理到。。。
P264: 处理后要彻底洗手。
P270: 使用本产品时,请勿进食、饮水或吸烟。
P391: 收集溢出物
P330: 漱口
P203: 使用前,获取、阅读并遵守所有安全说明。
P264+P265: 处理后彻底洗手[和…]。不要触摸眼睛。
P301+P317: 如果被吞咽:请寻求医疗帮助。
P305+P354+P338: 如果进入眼睛:立即用水冲洗几分钟。取下隐形眼镜(如果有的话),并且操作简单。继续冲洗。
P318: 如果暴露或担心,请就医。
P317: 寻求紧急医疗救助。
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | C1520409 | |
| 分析证书 | C1520409 |
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