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Rheodyne Manual Sample Injectors

 

Types and Capabilities
Models ending in 25 (i.e. 7725) are dual mode injectors. Dual mode injectors can use both the partial-filling and the complete-filling method for loading the sample loop. They are variable volume injectors because they allow the loading of various sample volumes. These dual mode injectors, also called front-loading injectors, have a needle port for loading sample built into the handle. The unique injection port design allows the tip of the needle to connect directly to the sample loop for no sample loss during loading.

Models ending in 10 (i.e. 7010) are single mode injectors. Single mode injectors use only the complete-filling method to load the sample loop. They are called fixed loop injectors as the sample loop size determines the sample volume. These injectors require a Loop Filler Port accessory, as a needle port is not built into the valve handle. There is not a direct connection between the syringe and the sample loop. Therefore, an excess of sample must be used to overfill the Loop Filler Port and completely fill the sample loop.

Models with an "i" suffix (i.e. 7725i) are identical to the models with the same numbers but the “i” designates a built-in position sensing switch. The switch provides the chromatograph with a reproducible start signal to mark the injection time in the data system.

The reproducibility of manual sample injectors depends on operator skill, syringe calibration, and the loading method. Partial-filling method is typically reproducible to 1.0% relative standard deviation (RSD). Complete-filling method is reproducible to 0.1% RSD for loops 5 µL.




Item Name Product Image Price

Rheodyne 7725 Stainless Steel Analytical Manual Sample Injectors

7000 psig - Differential Pressure, Max Analytical Scale Dual Mode, w/MBB, 2 Positions 6 Ports How to Choose a Sample Injector  Table I below...
Rheodyne 7725 Stainless Steel Analytical Manual Sample Injectors £841.90

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Rheodyne 7725i S/Steel Manual Analytical Sample Injectors Switch

Click Here For Exploded View of Sample Injectors (7725(i), 9725(i), 3725(-038)(i)) 7000 psig - Differential Pressure, Max Analytical Scale Dual...
Rheodyne 7725i S/Steel Manual Analytical Sample Injectors Switch £903.05

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Rheodyne 8125 Stainless Steel Injector Micro-Scale Dual Mode

How to Choose a Sample Injector  Table I below compares the characteristics of Rheodyne® manual sample injectors and will help you choose the most...
Rheodyne 8125 Stainless Steel Injector Micro-Scale Dual Mode £1,208.40

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Rheodyne Dual Mode PEEK Manual Sample Injectors - 3725

4000 psig - Differential Pressure, Max Prep  Scale Dual Mode 2 Positions 6 Ports How to Choose a Sample Injector  Table I below compares the...
Rheodyne Dual Mode PEEK Manual Sample Injectors - 3725
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Rheodyne Dual Mode PEEK Manual Sample Injectors - 3725i

4000 psig - Differential Pressure, Max Prep  Scale Dual Mode with Position Sensor2 Positions 6 Ports How to Choose a Sample Injector  Table I...
Rheodyne Dual Mode PEEK Manual Sample Injectors - 3725i £1,234.54

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Rheodyne Dual Mode PEEK Manual Sample Injectors - 9725

5000 psig - Differential Pressure, Max Analytical Scale Dual Mode w/MBB2 Positions 6 Ports How to Choose a Sample Injector  Table I below...
Rheodyne Dual Mode PEEK Manual Sample Injectors - 9725 £841.90

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Rheodyne Dual Mode PEEK Manual Sample Injectors - 9725i

5000 psig - Differential Pressure, Max Analytical Scale Dual Mode w/MBB, Position Sensor2 Positions 6 Ports How to Choose a Sample Injector ...
Rheodyne Dual Mode PEEK Manual Sample Injectors - 9725i £903.05

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Rheodyne Dual Mode S/Steel Manual Sample Injectors - 3725-038

5000 psig - Differential Pressure, Max Prep  Scale Dual Mode 2 Positions 6 Ports How to Choose a Sample Injector  Table I below compares...
Rheodyne Dual Mode S/Steel Manual Sample Injectors - 3725-038 £1,341.47

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Rheodyne High Pressure S/Steel Switching Valve 6 Port - 7000

Analytical Scale Material :- Stainless Steel Tubing OD :-  0.0625 in Positions :- 2 Ports :- 6 Differential Pressure, Max :-  7000 psig How...
Rheodyne High Pressure S/Steel Switching Valve 6 Port - 7000 £548.49

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Rheodyne Single Mode PEEK Manual Sample Injectors - 9010

5000 psig - Differential Pressure, Max Analytical Scale Single Mode 20L Loop 2 Positions 6 Ports How to Choose a Sample Injector  Table I...
Rheodyne Single Mode PEEK Manual Sample Injectors - 9010 £830.19

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Rheodyne Stainless Steel Manual Sample Injectors - 7010

7000 psig - Differential Pressure, Max Analytical Scale Single Mode, 20L Loop2 Positions 6 Ports Models 7000(L), 7010, 3000-038, 3000 and 9010...
Rheodyne Stainless Steel Manual Sample Injectors - 7010 £614.35

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Rheodyne Stainless Steel Manual Sample Injectors - 7410

How to Choose a Sample Injector  Table I below compares the characteristics of Rheodyne® manual sample injectors and will help you choose the most...
Rheodyne Stainless Steel Manual Sample Injectors - 7410
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