相关实验视频

Updated: Jun 8, 2025

In vitro Monitoring of Extracellular pH in Real-Time
10:11

In vitro Monitoring of Extracellular pH in Real-Time

Published on: June 3, 2021

1.8K

实时自适应内线酸性增强持续的pH控制病毒失活

Jia Sheng Zach Lee1, Tan Dai Nguyen1, Zi Ying Zheng1

  • 1Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.

Biotechnology journal
|November 8, 2024
PubMed
概括

这项研究介绍了一种用于连续生物处理的线内病毒无活化系统 (IVIS). 它使用实时自适应控制来精确操纵pH值,确保持续的病毒失活和产品质量,尽管过程变化.

关键词:
卷轴流逆流反应器的卷轴流逆流反应器连续下游加工的持续下游加工.关键过程参数 (CPPs) 关键过程参数在线病毒无活化.调节pH值 操纵pH值的方法过程控制过程控制发展过程发展过程.

更多相关视频

Monitoring Influenza Virus Survival Outside the Host Using Real-Time Cell Analysis09:02

Monitoring Influenza Virus Survival Outside the Host Using Real-Time Cell Analysis

Published on: February 20, 2021

3.0K
Cost-effective Method for Microbial Source Tracking Using Specific Human and Animal Viruses11:29

Cost-effective Method for Microbial Source Tracking Using Specific Human and Animal Viruses

Published on: December 3, 2011

12.1K

相关概念视频

Polyprotic Acids03:38

Polyprotic Acids

Acids are classified by the number of protons per molecule that they can give up in a reaction. Acids such as HCl, HNO3, and HCN that contain one ionizable hydrogen atom in each molecule are called monoprotic acids. Their reactions with water are:
29.0K
Buffers: Overview01:30

Buffers: Overview

Buffers play a crucial role in stabilizing the pH of a solution by mitigating the effects of small amounts of added acid or base. They consist of a weak acid and its conjugate base or a weak base and its conjugate acid. A solution of acetic acid and sodium acetate is an example of a buffer that consists of a weak acid and its salt: CH3COOH (aq) + CH3COONa (aq). An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride: NH3 (aq) + NH4Cl (aq).
3.9K
Buffers02:56

Buffers

A solution containing appreciable amounts of a weak conjugate acid-base pair is called a buffer solution, or a buffer. Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added. A solution of acetic acid and sodium acetate is an example of a buffer that consists of a weak acid and its salt: CH3COOH (aq) + CH3COONa (aq). An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride: NH3 (aq) + NH4Cl...
163.7K
Titration of a Weak Acid with a Strong Base01:30

Titration of a Weak Acid with a Strong Base

In titrating a weak acid with a strong base, different calculation methods are applied at various stages. Initially, the pH of a weak acid like acetic acid is calculated using its dissociation constant (Ka) and an ICE table. Upon addition of a strong base such as sodium hydroxide, a buffer forms, and its pH is determined using the Henderson-Hasselbalch equation. As more base is added and the titration reaches the halfway point, the pH becomes equal to the pKa of the acid, indicating equal...
2.1K
Buffer Effectiveness02:19

Buffer Effectiveness

Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
48.6K
Titration Calculations: Weak Acid - Strong Base03:55

Titration Calculations: Weak Acid - Strong Base

Calculating pH for Titration Solutions: Weak Acid/Strong Base
For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be represented as:
43.9K