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 67 篇同行评审文献引用。
沙黄也叫藏红T,分子式为C₂₀H₁₉ClN₄,分子量为350.85,CAS号为477-73-6。为红棕色粉末,易溶于水成红色溶液,溶于乙醇红色带黄色荧光。对盐酸为蓝红色溶液,过多则呈紫色,大量过多则转为蓝色;对氢氧化钠则生成棕红色沉淀;对硫酸则为绿色溶液,稀释时先变成蓝色,渐变成紫色,最后变成红色。最大吸收波长530nm,有刺激性。
沙黄/藏红T水溶液 (2%) 主要由沙黄和去离子水组成,可用于布氏杆菌染色或其他用途。该产品仅适用于科研实验,不可做他用。
自备材料:
1、载玻片、盖玻片
2、酒精灯
3、光学显微镜
操作步骤(仅供参考):
1、涂片:载玻片编号,于载玻片中央滴加沙黄/藏红T水溶液,加热至出现蒸汽,约0.5~1min。
2、加盖洁净的盖玻片,轻轻按压制成压片。
3、光学显微镜在低倍、高倍或油镜下观察细菌形态。
注意事项:
1、涂片之前应事先在背面做好圆圈标记,以便判断后续试验的位置。
2、待检细菌培养时间会影响染色,阳性菌培养过长或已死亡或细菌溶解,都常呈阴性反应。
3、为了您的安全和健康,请穿实验服并戴一次性手套操作。
Safranin, also known as Safranin T, has a molecular formula of C₂₀H₁₉ClN₄, a molecular weight of 350.85, and a CAS number of 477-73-6. It is a reddish-brown powder that is soluble in water to form a red solution and soluble in ethanol with a red color and yellow fluorescence. With hydrochloric acid, it forms a blue-red solution, turning purple with excess acid and blue with a large excess. With sodium hydroxide, it produces a reddish-brown precipitate. With sulfuric acid, it forms a green solution that first turns blue, then purple, and finally red upon dilution. Its maximum absorption wavelength is 530nm, and it is irritating.
2% aqueous solution of Safranin/Safranin T consists mainly of safranin and deionized water. It can be used for Brucella staining or other purposes. This product is intended for research experiments only and should not be used for other purposes.
Materials Provided by User:
1. Slides and cover slips
2. Alcohol lamp
3. Optical microscope
Operating Steps (For Reference Only):
1. Smear Preparation: Label the slide, place a drop of the safranin/safranin T aqueous solution in the center, and heat until steam is observed, approximately 0.5 to 1 minute.
2. Mounting: Place a clean cover slip over the preparation and gently press to make a squash mount.
3. Observation: Examine the bacterial morphology using the optical microscope under low, high, or oil immersion objective.
Precautions:
1. Marking: Prior to smearing, make a circular mark on the back of the slide to identify the area for subsequent examination.
2. Incubation Time: The incubation time of the test bacteria can affect staining results. Over-incubation, death, or lysis of Gram-positive bacteria often result in false-negative reactions.
3. Safety: For your safety and health, wear a lab coat and disposable gloves during the operation.
H315: 引起皮肤刺激
H319: 引起严重眼睛刺激
H318: 造成严重的眼睛损伤
P305+P351+P338: 如进入眼睛:用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出,取出隐形眼镜。继续冲洗。
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
P302+P352: 如皮肤沾染:用水充分清洗。
P321: 特殊处理(请参阅此标签上的...)。
P264: 处理后要彻底洗手。
P362+P364: 脱掉沾污的衣服,清洗后方可重新使用。
P264+P265: 处理后彻底洗手[和…]。不要触摸眼睛。
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。
P317: 寻求紧急医疗救助。
P337+P317: 如果眼睛刺激持续:寻求医疗帮助。
P332+P317: 如果出现皮肤刺激:请寻求医疗帮助。
通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!
| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | S1508773 | |
| 分析证书 | S1508773 | |
| 分析证书 | S1508773 |
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