Waters 717plus - 4.8.3 Injecting Viscous Samples

Sampling Considerations 123
4
4. If required by sample viscosity, change the draw rate (Figure 4-28).
5. Load sample into an appropriate size vial (Section 4.2.2,
Selecting Sample Vials).
4.8.3 Injecting Viscous Samples
Slowing the sample withdrawal rate improves injection accuracy with viscous samples.
The allowable range in draw rate for various syringes is shown in Tab le 4 - 4
.
To change the sample draw rate, press the keys indicated in Figure 4-28
.
Table 4-4 Sample Draw Rate
Syringe Volume (µL) Draw Rate (µL/sec)
25 0.10 to 0.50
250 1.00 to 5.00
2500 10.00 to 50.00