核心参数
仪器类型: 普通搁板型
适用范围: 生产型
产地类别: 进口
冻干面积: 0
真空度: 0
捕水能力: 0
冷凝温度: 0
主机尺寸: 0
SP Scientific冷冻干燥机Benchmark的工作原理介绍
冷冻干燥机Benchmark的使用方法?
SP ScientificBenchmark多少钱一台?
冷冻干燥机Benchmark可以检测什么?
冷冻干燥机Benchmark使用的注意事项?
SP ScientificBenchmark的说明书有吗?
SP Scientific冷冻干燥机Benchmark的操作规程有吗?
SP Scientific冷冻干燥机Benchmark报价含票含运吗?
SP ScientificBenchmark有现货吗?
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一种使用冷冻干燥技术对生物样品进行前处理的方法
传统的对于全血、血浆、血清、尿液、粪便、组织或组织勻浆液等生物样品的处理方法为有机溶剂沉淀蛋白离心后使用氮气或空气流在加热条件下吹干有机溶剂再定容后进行分析,或者使用与生物样品不相混容的有机溶剂如乙酸乙酯、乙醚等进行液液萃取后使 用氮气或空气流在加热条件下吹干有机溶剂定容后进行分析。
生物产业
2014/08/19
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疫苗的冷冻干燥-在配方和工艺开发中的挑战和概念
Vaccination prevents millions of deaths from infectious diseases per year; however, there are still millions of people who die from these diseases due to weak thermostability demanding cold chains, long-term stability issues and distribution challenges. All these limitations can be overcome by creating a dry product through lyophilization. With the urgency to develop a coronavirus vaccine, it is a crucial time to discuss the process of freeze-drying vaccines.
486KB
2022/04/29
冻干机设备性能的测量:两种方法的比较
The objective of this investigation was to evaluate two methods for measuring the maximum sublimation rate that a freeze-dryer will support—the minimum controllable pressure method and the choke point method. Both methods gave equivalent results, but the minimum controllable pressure method is preferred, since it is easier, faster, and less subjective. The ratio of chamber pressure to condenser pressure corresponding to the onset of chokedflflow was considerably higher in this investigation (up to about 20:1) than in previously published reports. This ratio was not affected by the location of the pressure gauge on the condenser; that is, on the foreline of the vacuum pumpversuson the body of the condenser itself. The total water loss due to sublimation as measured by tunable diode laser absorption spectroscopy was consistently within 5% of gravimetrically determined weight loss, regardless of whether the measurement took place during chokedversusnon-choked process conditions.
955KB
2022/04/29