|||
Tris
分子式: (HOCH2)3CNH2
分子量.: 121.14
(1) 规格:
外观:白色结晶
含量:≥99.5 %
熔点:168-172℃
水不溶物:≤0.01%
强热残份:≤0.05%
重金属(as pb):≤5PPM
干燥失重:≤0.2%
吸光度(260nm):≤0.2
PH(0.1mol/L, 25℃):10.0-10.8
Fe:≤1PPM
SO42+:≤5PPM
Cl:≤5PPM
Appearance: white crystal
Content: ≥99.5%
Melting point: 168-172℃
Loss on drying: ≤0.2%
ASH: ≤0.05%
PH (0.1mol/L, 25℃):10.0-10.8
Insoluble in Water: ≤0.01%
ABS (260nm): <0.2
Heavy metals: ≤5PPM
Fe: 1PPM
SO42+:≤5PPM
Cl: ≤5PPM
别名: 三羟甲基氨基甲烷; 2-氨基-2-羟基-1,3-丙二醇; 氨丁三醇; 缓血酸铵; 三甲醇氨基甲烷; Trishydroxymethylaminomethane; 2-amino-2-hydroxymethylpropanediol; THAM; TRIS; tris base; Tris buffer; free base; Tris(hydroxymethyl)methylamine; Trizma; trizma base; Trometamol; Tromethamine; Tromethane
Usage: 用作缓冲剂。Tromethamine is used as an intermediate for the preparation of surface active agents, vulcanization accelerators, and pharmaceuticals, and used as a titrimetric standard.
不可以高压灭菌!绝对不行!
缓冲液最重要的是pH值,加NaCl并不影响pH,按照配方加入就行了。
SDS(Sodium Dodecyl Sulfate)是阴离子去污剂,作为变性剂和助溶试剂,它能断裂分子内和分子间的氢键,使分子去折叠,破坏蛋白分子的二、三级结构。
Archiver|手机版|科学网 ( 京ICP备07017567号-12 )
GMT+8, 2024-10-20 04:30
Powered by ScienceNet.cn
Copyright © 2007- 中国科学报社