The BD Discardit™ II two-piece syringe is a single-use medical device intended for injection and aspiration of medical fluids, including both bodily fluids (blood, etc.) and medicines. The lubricant included in the barrel material allows for smooth advancement of the plunger, leading to reduc...
it should be stressed that this method separates denatured protein. Sometimes one needs to analyze ...
μg/ml of usp cyanocobalamin rs in water. [note—store in a dark place, and discard after 1 week.] standard solution:1 μg/ml of usp cyanocobalamin rs from the standard stock solution diluted with water sample solution:finely powder nlt 30 tablets. transfer a portion of the powder, ...
EZNA——精选推荐
z (yellow) Protein 230 Ladder 1 Syringe 4 Spin Filters *) “This product is provided under an agreement between Molecular Probes, Inc. (a wholly owned subsidiary of Invitrogen Corporation) and Agilent Technologies. The manufacture, use, sale or import of this product may be subject to on...
细菌裂解的方法:•碱裂解法:0.2molNaOH+1%SDS•煮沸裂解法:沸水煮沸40秒•SDS裂解法:10%SDS,一般用于质粒大量提取。DNA浓度的测定:测定DNA浓度的方法有两种,即利用分光光度计法测定DNA的紫外光吸收值;另一种方法是测定样品中溴化乙锭发射的荧光的强度来计算核酸的含量。紫外光吸收法:因为组成核酸的碱基(...