Introduction 30
1
Needle Wash System
The needle wash system:
• Prevents cross-contamination of samples
• Extends seal life by removing the mobile phase and the sample from the sampling
needle
Semiprep Chromatography
For semiprep chromatography (up to 2 mL injections), the 717plus Autosampler may be
configured with optional:
• 2000-µL sample loop – Required for injections greater than 200 µL
• 2500-µL syringe – Speeds pre-injection sequence for samples greater than 150 µL
Microbore (< 1 µL) Chromatography
For microbore chromatography, the 717plus Autosampler may be configured with:
• 25-µL syringe for improved injection volume precision below 1.0 µL
• Low volume sample vials
Syringe Speed
The autosampler syringe speed is adjustable for each syringe size and allows you to
adjust for sample viscosity.
Heater/Cooler
The Waters 717plus Autosampler may be configured with a heater/cooler to maintain
constant sample compartment temperature from 4 to 40°C.
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