Grace Catalog 2008

analytical hplc
hplc accessories | valves
Rheodyne ® Model 7725 and 9725 Analytical Injectors
• “Make-Before-Break” (MBB) switching for
uninterrupted flow
• Wider port angles provide improved fitting access
• Position sensing switch option
• Capable of injecting volumes from 1µL to 5mL with
high precision
• Suction Needle Adapter eliminates exposure of sample
to metal of a syringe needle
The 7725i features a built-in position-sensing switch, providing
the chromatograph with a reproducible start signal. The 9725,
9725i are biocompatible versions. Wetted materials are PEEK
and Tefzel ® , making them ideal for applications requiring a
metal-free flow path.
Rheodyne ® Model 7125 Analytical Injectors
• Versatile and reliable reputation
• 5µL to 5mL sample loops available
• Position-sensing switch option
• The wetted materials are: Titanium, Tefzel ® , and ceramic
Flow Diagram
Analytical Sample Injectors
Description Version Part No.
7725, Includes a 20µL PEEK Sample Loop SS 77250
7725i, Includes a 20µL PEEK Sample Loop SS 77251
9725, Includes a 20µL PEEK Sample Loop PEEK 40010
9725i, Includes a 20µL PEEK Sample Loop PEEK 40011
Accessories
Suction Needle Adapter — 40016
5503
Waste
6
1
5
2
4
Pump 3
Column
Waste
6
Sample In 1
5
Sample In
2
4
Pump 3
Column
Position A (LOAD) Position B (INJECT)
5502
Analytical Sample Injectors
Description Version Part No.
7125 SS 7125RV
Accessories
Suction Needle Adapter — 40016
5500
Rheodyne ® Model 7010 and 9010 Analytical Injectors
• Rear-loading valves
• High volumetric precision
• Low volume flow passages
• Loop-Filler Port accommodates needles from 0.018" to
0.028" diameter
The 7010 injects sample volumes of 5µL or larger by means
of a removable sample loop. Functionally similar to the 7010,
the 9010 is more inert, made from PEEK, Tefzel ® and ceramic.
The 9010 comes with a built-in position-sensing switch.
Loop Filler Port
Accessory
Analytical Sample Injectors
Description Version Part No.
7010, Includes a 20µL Sample Loop SS 7010RV
9010, Includes a 20µL Sample Loop PEEK 9000RV
Accessories
Loop-Filler Port SS 7044
Loop-Filler Port PEEK 40012
Needle Port Fitting — 7012-009
5501
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