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zymoshengren

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9楼: Originally posted by 冼亮淀粉酶 at 2012-05-08 22:09:33:
我配过了,0.2M的磷酸二氢钠水溶液在4摄氏度下的pH值为4.50,磷酸氢二钠-磷酸二氢钠这个缓冲对绝对不可能在pH3.0下还有缓冲能力,要查这篇论文里还有没有提供配方或者引用别的文章。或者是不是柠檬酸-磷酸氢二钠的 ...

柠檬酸-磷酸氢二钠到PH到不了7.5吧~纠结啊
11楼2012-05-10 21:04:57
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