计算溶液所需的质量、体积或浓度。
BioReagent,无菌过滤,用于细胞培养 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 163 篇同行评审文献引用。
谷氨酰胺 (Glutamine, Gln)又称2-氨基-4-甲酰胺基丁酸,是谷氨酸的酰胺,L-谷氨酰胺是蛋白质合成中的编码氨基酸,哺乳动物非必需氨基酸,在体内可以由葡萄糖转变而来。谷氨酰胺的CAS号为56-85-9,分子量为146.15,呈白色结晶或结晶性粉末,能溶于水 (25mg/ml),不溶于甲醇、乙醇、醚、苯、丙酮、氯仿和乙酸乙酯,无臭,稍有甜味。在中性溶液中不稳定,在醇、碱或热水中易分解成谷氨醇或丙酯化为吡咯羧醇,无臭,有微甜味。
L-谷氨酰胺溶液 (0.1 mol/L)由L-谷氨酰胺、0.9%氯化钠、水等组成,经过滤除菌处理,可用作哺乳动物细胞培养中培养基的添加剂,用途极为广泛。该试剂仅用于科研领域,不适用于临床诊断或其他用途。
操作步骤 (仅供参考):
按实验具体要求操作。一般使用浓度为2mmol/L,即按培养液: L-谷氨酰胺溶液 (0.1 mol/L)=50:1混合使用。
注意事项:
1、注意避免反复冻融,并注意无菌操作。
2、谷氨酰胺水溶解性为25mg/ml,0.1 mol/L的L-谷氨酰胺溶液低温条件保存有白色色块状,室温解冻后仍有不溶物,应于50-60℃温水中助溶后无菌分装备用,分装后的小份溶液应及时-20℃保存。
3、谷氨酰胺在溶液中不稳定,4℃下放置1周可分解50%,故应用前加入培养液。
4、加有谷氨酰胺的培养液在4℃冰箱中储存2周以上时,应重新加入原来的谷氨酰胺。
5、试剂开封后请尽快使用,以防影响后续实验效果。
6、为了您的安全和健康,请穿实验服并戴一次性手套操作。
Glutamine (Gln), also known as 2-amino-4-carbamoylbutanoic acid, is the amide of glutamic acid. L-Glutamine is an encoded amino acid involved in protein synthesis and a non-essential amino acid for mammals, which can be synthesized from glucose in vivo. It has a CAS number of 56-85-9 and a molecular weight of 146.15. Glutamine appears as white crystals or crystalline powder, soluble in water (25 mg/mL), but insoluble in methanol, ethanol, ether, benzene, acetone, chloroform and ethyl acetate. It is odorless with a slight sweet taste. It is unstable in neutral solutions and easily decomposes into glutaminol or undergoes propionylation to form pyrrolidonecarboxylic acid in alcohols, alkalis or hot water.
L-Glutamine Solution (0.1 mol/L) is composed of L-glutamine, 0.9% sodium chloride and water, and is sterilized by filtration. It can be widely used as an additive in culture media for mammalian cell culture. For research use only. Not intended for clinical diagnosis or other purposes.
Operating Procedures (For Reference Only)
Operate according to the specific requirements of the experiment. The general working concentration is 2 mmol/L, which can be prepared by mixing culture medium: L-Glutamine Solution (0.1 mol/L) at a ratio of 50:1.
Precautions
1. Avoid repeated freezing and thawing, and ensure aseptic operation.
2. With a water solubility of 25 mg/mL, the 0.1 mol/L L-Glutamine Solution may present white clumps when stored at low temperature, and some insoluble substances may remain after thawing at room temperature. The solution should be incubated in warm water at 50-60°C to facilitate complete dissolution, then aliquoted under sterile conditions for later use. The aliquoted solution should be stored at -20°C promptly.
3. Glutamine is unstable in solution and can decompose by 50% after 1 week of storage at 4°C. Therefore, it should be added to the culture medium immediately before use.
4. If the culture medium supplemented with glutamine is stored in a 4°C refrigerator for more than 2 weeks, the original amount of glutamine should be replenished.
5. Use the reagent as soon as possible after opening to prevent adverse effects on subsequent experimental results.
6. 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 | L1509609 | |
| 分析证书 | L1509609 |
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