常用PH缓冲溶液
常用pH缓冲溶液的配制和pH值Preparation and pH Values of Common pH Buffer Solutions序号(No.) 溶液名称 (Solution name) 配制方法 (Preparation) pH值(pH value) 1 氯化钾-盐酸 13.0 ml 0.2 mol/L HCl 与25.0 ml 0.2 mol/L KCl混合均匀后,加水稀释至100 ml 1.72 10、 氨基乙酸-盐酸 在500 ml 水中...
pH标准缓冲溶液StandardpHBufferSolutions名称(Name)配制(Compoundingway)不同温度时的pH值(pHindifferenttemperatures)0℃5℃10℃15℃20℃25℃30℃35℃40℃草酸盐标准缓冲溶液c[KH3(C2O4)2·2H2O]为0.05mol/L。称取12.71g四草酸钾[KH3(C2O4)2·2H2O]溶于无二氧化碳的水中,稀释至1000ml1.671.671.671.671.681...
pH标准缓冲溶液StandardpHBufferSolutions名称配制不同温度时的pH值(pHindifferenttemperatures)5℃10℃15℃20℃25℃30℃35℃40℃(Name)(Compoundingway)0℃草酸盐标准缓c[KH3(C2O4)2·2H2O]为0.05mol/L。称取1.671.671.671.671.681.681.691.691.69不同温度时的pH值(pHindifferenttemperatures)45℃50℃55℃60℃70...
The primary purpose of a buffer is to control the pH of the solution. Buffers can also play secondary roles in a system, such as controlling ionic strength or solvating species, perhaps even affecting protein or nucleic acid structure or activity. Buffers are used to stabilize nucleic acids, ...
将大瓶中缓冲溶液倒入小瓶中，并在环境温度下放置1～2小时，等温度平衡后再使用。使用后不得再倒回大瓶中，以免污染，小瓶中的缓冲溶液在>10℃的环境条件下可以使用2～3天，一般pH7.00、 pH6.86及 pH4.00三种溶液使用时间可以长一些，pH9.18和pH10.01溶液由于吸收空气中的CO2,其pH值比较容易变化.
--一---注:为保证pH值的准确度,上述标准缓冲溶液必须使用pH基准试剂配制。常用pH缓冲溶液的配制和pH值Preparation and pH Values of Common pH Buffer Solutions序号(No.)溶液名称(Solution name)配制方法相关标签男人抗衰老最好的方法 活塞环的正确安装方法 恐艾最权威的脱恐方法 快速消肿的方法 腌鸡蛋的正确方法 ...
HORIBA 201046-2 5202010462 Sodium Sulfite for preparation of 1000ml DO zero solution; add DI water to graduated mark on containerHORIBA 201045-1 5202010451 ORP Calibration Check; 250ml ultrapure water for buffer packet addition, 89 mV @ 25 degrees centigradeHORIBA 201046-1 5202010461 ORP ...
1 5 Reagents 1 6 Apparatus 2 7 Preparation of test samples. 2 8 Procedure 2 8.1 Preparation of the aqueous extract 2 8.2 Measurement of the pH of the aqueous extract 2 9 Calculation. 3 10 Precision 3 11 Test report . 3 Annex A (informative) Preparation of standard buffer solutions 4 ...
3.3 wet processing.n.—in textile manufacturing, a collective term for process included in preparation,dyeing, printing and finishing in which the textile material treated with a 1iquid, normally water, or with chemicals in solution or dispersion in a liquid. 4 Safety Precautions NOTE: These saf...