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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
低温
- 库存:
现货
- 供应商:
上海善然生物科技有限公司
描述
Gibco® HEPES (N-2-Hydroxyethylpiperazine-N-2-Ethane Sulfonic Acid) is a zwitterionic organic chemical buffering agent commonly used in cell culture media. The addition of 10 – 25 mM HEPES provides extra buffering capacity when cell culture requires extended periods of manipulation outside of a CO2 incubator. HEPES is a good buffering choice for many cell culture systems because it is membrane impermeable, has limited effect on biochemical reactions, is chemically and enzymatically stable, and has very low visible and UV light absorbance.Product Use
For in vitro diagnostic use.
Dual-site cGMP Manufacturing and Quality System
Gibco® HEPES is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 and ISO 9001 standards. For supply chain continuity, Life Technologies offers an identical Gibco® HEPES product made in our Scotland facility (15360-049). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.
在中国境内, 本产品仅限于非临床科研用途, 产品信息以中文为准。 (In China territory, the product is for Research Use only in non-clinical unit, product information in Chinese shall prevail.)
规格
| Form: | Liquid |
|---|---|
| pH Range: | 7.2 - 7.5 |
| Product Size: | 20 mL |
| Shipping Condition: | Room Temperature |
内容及储存
Shipping conditions: Ambient
Shelf life: 24 months from date of manufacture
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文献和实验化学名:2-[4-(2-Hydroxyethyl)-1-piperazinyl] ethanesulfonic acid中文名:羟乙基哌嗪乙硫磺酸分子式:C8H18N2O4S分子量:238.3HEPES是一种非离子两性缓冲液,其在pH 7.2 - 7.4 范围内具有较好的缓冲能力。其最大优点是在开放式培养或细胞观察时能维持较恒定的PH值。在这种培养条件下,细胞培养瓶的盖子应拧紧,以防止培养液中所需的少量碳酸盐散入空气中。大多数培养液中含有酚红作为pH指示剂,酸性培养液呈橙黄色,碱性培养液呈深红
东华帝君 原料量占比教大70%以上,粘合剂HPC,8-10%,崩解剂羧甲淀粉钠和交联羧甲基纤维素钠,其他微晶。两种崩解剂内外加各种比例都尝试了,就0.1M盐酸不崩,其他介质中崩解剂任意常规比例都没问题。原料药在0.1M中溶解度极大。大家有什么建议。 philfly 最可能是HPC,你可以换个粘合剂,或者用量降很低试一试。如果换粘合剂或者用量降很低崩解没问题,那你就懂了 q729056300
试剂盒里。对细胞无毒性作用。它是一种氢离子缓冲剂,能较长时间控制恒定的pH范围。使用终浓度为10-50mmol/L。 关于HEPES 缓冲溶液的配制,不同的文献资料有不同的说法。根据用途,一种是单纯的HEPES+NaOH,另一种是HEPES+盐。各种配制方法总结如下: 一、500ml 1 M HEPES, pH = 7.0 Stock solution的配制 119.15 g HEPES 溶解在400ml蒸馏水中,加0.5~1M 的NaOH水溶液调节至少所需pH(HEPES
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