Specifications

28
• Rheodyne 7725 (228-32210-91) For general analysis
• Rheodyne 7725i
(228-32210-93) For general analysis
• Rheodyne 8125
(228-23200-91) For semi-micro systems
• Rheodyne 9725
(228-32650-91) For bio-inert LC systems
• Rheodyne 9725i
(228-32650-93) For bio-inert LC systems
* The Mixer 0.5-2.6 mL HP is
shown in the photograph.
* The automatic rinse kit for
the LC-20AB is shown in
the photograph.
• 20AD Automatic Rinsing Kit (228-45567-91)
• 20AT Automatic Rinsing Kit (228-45568-91)
• 20AB Automatic Rinsing Kit (228-18803-92)
• Mixer 0.5-2.6 mL HP (228-45093-93)
• Mixer 100 µL HP (228-35830-93)
• 20A Bio-inert Mixer (228-45093-92)
• Preparative Mixer (228-20600-91)
Optional Loops
Volume
100 µL
200 µL
Material
SUS
PEEK
SUS
PEEK
Part Number
228-32211-16
228-32651-16
228-32211-17
228-32651-17
Volume
500 µL
1 mL
Material
SUS
PEEK
SUS
PEEK
Part Number
228-32211-18
228-32651-18
228-32211-19
228-32651-19
Optional Accessories
Options for Solvent Delivery Units
Options for Chemical Reaction Units
Options for Sample Injection Units
These optional kits are used to continuously, automatically rinse
the backs of the plunger seals and plunger units. They wash away
the salt that is deposited on the surfaces of the seals and plungers
when buffer solution is used as the mobile phase, thereby helping
to prolong the service life of these parts. There are kits for use with
the LC-20AD, the LC-20AT, and the LC-20AB.
These gradient mixers offer superior mixing performance. Mixing
volumes of 0.5 mL, 1.7 mL, and 2.6 mL can be selected for the
Mixer 0.5-2.6 mL HP. The mixing volume for the Mixer 100 µL HP is
100 µL. The 20A bio-inert mixer incorporates PEEK resin and
ceramic for use with bio-inert systems, and two mixing volumes
can be selected. There are also mixers for preparative applications.
Reducing the gradient delay volume is reguired in ultra high speed
(UHPLC) analysis. The mixer for UHPLC performed to minimize the
gradient delay volume and optimize the mixing performance.
When using the LC/MS system, use the MR 20 µL. When using no
formic acid, acetic acid, or trifluoroacetic acid (TFA), use the MR 40
µL. When using formic acid and acetic acid, use the MR 100 µL.
When using TFA, use the MR 180 µL. There are lineup of suitable
mixers for purpose.
This degasser purges dissolved air from the mobile phase and prevents phenomena such as bubble formation,
baseline noise, and drift. The DGU-10B can degas up to four mobile phase solutions with helium gas. It is
turned ON/OFF from the solvent delivery unit or system controller.
This air circulation-type reaction chamber is used for post-column derivatization.
Temperature-control range: Between 15°C above room temperature and 150°C
Temperature-control precision: ±0.1°C (100 V operation only)
* The Rheodyne 7725i/9725i
incorporates a position-
sensing switch.
• MR 20 µL Mixer for UHPLC
• MR 40 µL Mixer for UHPLC
• MR 100 µL Mixer for UHPLC
• MR 180 µL Mixer for UHPLC
Automatic Rinsing Kit
Mixer
Sample Injectors
(228-45067-93)
DGU-10B
Helium Degassing Unit
(228-45065-XX)
CRB-6A
Chemical Reaction Chamber