Instruction Manual
Section 1
Introduction
1.1 DynaLoop Sample Loop Description
The DynaLoop sample loop is a large-volume sample injection loop for use with the
BioLogic DuoFlow
™
system. Available in 25 ml and 90 ml sample capacities, the DynaLoop
is used with the automated AVR7-3 injection valve.
1.2 Operation
The DynaLoop consists of five major components (Figure 1):
• Sample end assembly
• Buffer end assembly
• Glass tube graduated in 1 ml increments
• Sliding seal assembly
• Protective plastic jacket
Fig. 1. DynaLoop 25 and DynaLoop 90 sample loops.
The sliding seal assembly divides the glass tube into two distinct chambers:
• Sample chamber
This end connects to port 3 on the AVR7-3 injection valve.
• Buffer chamber
This end connects to port 6 on the AVR7-3 injection valve.
The DynaLoop sample loop delivers sample to the column in a four-phase process:
• Load phase
• Injection phase
• Flush phase
• Reload phase
Sample end
assembly
Sliding seal
assembly
Glass tube
Buffer end
assembly
Plastic jacket
0
5
10 1
5 20
25
0 10 15 20 25 30 35 40 45 50 55 60 657075 80 85 90
5
1