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溴百里酚蓝 促销  ACS

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熔点：200-202°C
包装规格：5g 25g 100g in glass bottle
产品简介：一种酸碱指示剂,pH变色范围6.0(黄色)-7.6(蓝色)。吸附指示剂。
溶解性：溶于乙醇、乙醚、甲醇和稀氢氧化碱溶液,略溶于苯、甲苯和二甲苯,微溶于水,几乎不溶于石油醚，最大吸收波长420nm。
储备液保存：-80°C, 6 months -20°C, 1 month (protect from light)
体外研究：A first characterization and comparison is done by developing an easy and direct measurement method based on a pH indicator system using Bromothymol Blue (BTB) as the indicator and potassium phosphate as the buffer. A pH-shift assay is developed on the basis of Bromothymol Blue as the pH indicator and potassium phosphate as the buffer component. Three pH indicators are tested for the direct determination of 2- 2-keto-L-gulonic acid (2-KLG) production on a plate. The results show that Bromothymol Blue is superior to the other two indicators in terms of the obvious color change and a suitable pH range (blue to yellow at pH 6.5-7.5). Upon the addition of a Bromothymol Blue solution (0.1%, w/v) to an agar plate, zones surrounding colonies of K. vulgare 07 mutants change their color from blue to yellow because K. vulgare 07 mutants release 2-KLG on agar plates, thereby acidifying surrounding areas around colonies.
保存条件：室温
注意事项：1、为了您的安全和健康，请穿实验服并戴一次性手套操作。 2、以上信息仅做参考交流之用。

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