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®缓冲剂
Trizma® Pre-Set crystals
产品编号: | 3256291 |
规格: | BioPerformance Certified, pH 8.0, average Mw 141.8 |
包装规格: | 10 PKG |
产品类别: | 进口试剂 |
品牌: | Sigma-Aldrich |
优惠价: | 立即咨询 |
产品别名
®缓冲剂
Trizma® Pre-Set crystals
Tris crystals
Tris 晶体
基本信息
NACRES | NA.25 |
Application【应用】 | Open the foil pouch, dissolve contents in 900 mL of water; add additional water to a final volume of 1 liter to make a 0.1 M solution at a temperature of 25 ℃. No pH adjustment is necessary. Guaranteed accuracy: ±0.1 pH units. Tris has a significant temperature coefficient, so select the mixture to give the desired final pH at the desired temperature. From 5 ℃ to 25 ℃, the pH decreases an average of 0.03 pH units per ℃. From 25 ℃ to 37 ℃, the pH decreases an average of 0.025 pH units per ℃. If a different concentration is desired, note that there is a concentration effect on the pH of the solution. 该产品经细胞培养测试。它还经过了低内毒素水平检测并分析了是否已去除核酸酶和蛋白酶。 |
Other Notes【其他说明】 | This product is a pre-mixed combination of Trizma base and Trizma HCl in convenient foil pouches that can be used to prepare a common pH value for Tris buffer. 某些pH电极不能使用Tris缓冲液提供准确的结果。 |
Preparation Note【制备说明】 | Trizma溶液可高压灭菌。 |
Legal Information【法律信息】 | Trizma is a registered trademark of sigma-aldrich Co. LLC |
产品性质
Quality Level【质量水平】 | 200 |
grade【等级】 | BioPerformance Certified |
form【形式】 | crystalline powder |
mol wt【分子量】 | average Mw 141.8 |
technique(s) | cell culture | mammalian: suitable |
impurities【杂质】 | DNase, RNase, Protease, NICKase, none detected endotoxin, tested total aerobic microbial count, tested ≤0.05 A290 ≤0.5% water (Karl Fischer) ≤5 ppm Heavy metals (as Pb) |
pH【pH值(酸碱度)】 | 7.71 (37 ℃, 0.1 M)(lit.) 8.00 (25 ℃, 0.1 M)(lit.) 8.0 8.58 (5 ℃, 0.1 M)(lit.) |
useful pH range【有效pH范围】 | 7.0 - 9.0 |
application(s) | diagnostic assay manufacturing |
packaging【包装】 | 简易锡箔袋包装 |
安全信息
Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
WGK | WGK 1 |
Personal Protective Equipment【个人防护装备】 | dust mask type N95 (US), Eyeshields, Gloves |