P9416-100ML默克Merck Sigma-Aldri

【求助】sigma公司的PMA储存液浓度

licanming 请问大家用sigma公司的PMA时，储存液的浓度是配多少的？保存期多长？我是准备用DMSO配，我看说明书的意思是储存液浓度为20mM，但我工作液的浓度只要100nM，故很难分装和稀释。如果储存液浓度低一点，会不会对保存时间产生影响啊？我在园子里搜过，有用1mg/ml的，但我不知他是否用sigma公司的。 licanming 自己顶一下 amygdala 对于保存

Chelex-100法提取微量DNA

Chelex-100法提取微量DNA1. Add 1/50 volume of Proteinase K (10 mg/mL) and incubate the sample at 65°C for 2 hrs to overnight.2. 200 uL 5% Chexlex-100,add 10 uL proteinase K (20 mg/mL),inculate 2 hrs in 37 °C.3. 50ul Chelex液及lfl蛋白酶K水，56％温水浴消化2h后，煮沸8min，迅速放

Dynabeads® Co-Immunoprecipitation Kit

. A final concentration of 0.02 % Tween 20 should be also added to the LWB for optimal performance. The LWB buffer also enables in-solution digestion of isolated protein complexes for direct Mass Spectrometry analysis, or the extraction of nucleic