12 Agilent 1260 Infinity II Preparative Autosampler User Manual
1
Introduction
Overview of the Module
Overview of the Module
The Agilent 1260 Infinity II Preparative Autosampler is designed for use with
other modules of the Agilent 1200 Infinity Series, 1200 Series, and 1100 Series
LC, or with other LC systems if adequate remote control inputs and outputs
are available. The Preparative Autosampler is controlled by Agilent control
software (OpenLAB CDS).
Three sample-rack sizes are available for the Preparative Autosampler. The
standard half-size rack holds 2× 66 vials (2.0 mL) while the other half-size rack
options provide space for 2× 18 vials (6.0 mL) respectively. Any two half-size
rack drawers can be installed in the autosampler simultaneously. A specially
designed two half-size sample-rack holding 2× 50 vials (2.0 mL) vials is
available for method compatibility. These special 2× 50 vials (2.0 mL) half-size
racks are not designed for combinations with the other rack portfolio.
The preparative autosampler's transport mechanism uses an X-Z-Theta
movement to optimize vial pick-up and return. Vials are picked up by the
gripper arm, and positioned below the needle station. The gripper transport
mechanism, the needle station, and the hydraulic unit are driven by motors.
Movement is monitored by optical sensors and optical encoders to ensure
correct operation. The metering device is always flushed after injection to
ensure minimum carry-over.
The 1260 Infinity II Preparative Autosampler injection head provides volumes
from 0.1 – 900 L and can be operated up to 400 bar.
The six- port injection valve unit (only 5 ports are used) is driven by a
high- speed hybrid stepper motor. During the sampling sequence, the valve
unit bypasses the autosampler, and directly connects the flow from the pump
to the column. During injection and analysis, the valve unit directs the flow
through the autosampler. This ensures that all the sample is completely
injected into the column. Any sample residue is removed from the metering
device and from the needle before the next sampling sequence begins.
For applications that require control of the vial temperature, the module can
be combined with the Agilent 1290 Infinity Sample Cooler (G7167-60005). The
combination of the Preparative Autosampler with the sample cooler is called a
"cooled Preparative Autosampler". For more details, refer to the 1290 Infinity
Sample Cooler documentation.
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