L*****t 发帖数: 56 | 1 问题先复制在这里:半胱氨酸(L-Cysteine)的-SH官能团的pKa是多少?
Google第一个结果是8.0, 觉得好像有点低,再往下看发现其他网页都说是8.5
看来Google是很不靠普的,那么我查一下更专业的Wolfram Alpha, 答案是8.18
还是不放心又找来两本有机试剂手册,结果分别是8.33和8.14
我只是想优化一下实验条件而已,难道这种基础信息还要自己动手来验证么... | b******y 发帖数: 627 | 2 If it is in a protein, it can vary quite a bit depending on its environment.
So whatever you found serve a good reference point. |
|