36 Agilent 8453 Dissolution Testing System Installing and Operating Manual
2Setting Up
Installing a Valve-based Sampling System
Installing a Valve-based Sampling System
The valve-based sampling system samples from one bath online. The system
uses an eight-port stream-selection valve to sample up to eight vessels
sequentially. Each time a sample is taken a certain amount of dissolution
medium is lost to waste.
To install the valve system you will need the following parts:
• Valve system tubing kit
• Flow cell, 1 mm path length
• Valve-pump controller
• Eight-port valve unit
• Peristaltic pump 1VS
Figure 8 Valve-based Sampling System (G1128A)
Peristaltic pump 1VS
Controller–valve cable
Controller–pump cable
Controller–GPIO
cable
Valve-pump control
unit
Spectrophotometer
Blank vessel
Control vessel
Eight-port valve unit
Vessel 1
Bath
Valve tubing