What is the functional difference between the MRQ and the Max Recovery autosampler vials - FAQ
July 17, 2017
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Overview

Both MRQ™ and Max Recovery™ autosampler vials are engineered to maximize sample recovery without the need for inserts, making them ideal for precious or limited-volume samples. However, their design differences make each better suited for specific autosampler configurations and analytical needs.

Key Differences

1. Needle Compatibility

  • MRQ™ Vials
    Designed for compatibility with a wider range of autosamplers, including those with:

    • Side-port needles (e.g., Waters™ WISP®)
    • Bottom-port needles (e.g., Waters™ Alliance®, Acquity®)
  • Max Recovery™ Vials
    Optimized specifically for bottom-port needle autosamplers, such as:

    • Waters™ Alliance®
    • Waters™ Acquity®
    • Other brands using bottom-entry needle designs

Choosing the correct vial based on your autosampler’s needle type ensures optimal sample access and minimizes residual volume.

2. Total Volume Capacity

  • MRQ™ Vials: 1.2 mL (1,200 µL)
  • Max Recovery™ Vials: 1.8 mL (1,800 µL)

This difference in total volume may influence your choice depending on:

  • Sample availability
  • Required injection volume
  • Headspace considerations for concentration-sensitive analyses

3. Headspace Considerations

The amount of headspace (air above the liquid) in the vial after filling can impact:

  • Volatile compound stability
  • Concentration accuracy
  • Evaporation rates

If your method is sensitive to headspace volume, consider how much sample you plan to use and select the vial that best aligns with your volume and recovery needs.

Summary

Feature MRQ™ Vial Max Recovery™ Vial
Needle Compatibility Side-port & bottom-port Bottom-port only
Total Volume 1.2 mL 1.8 mL
Best Use Case Versatile autosampler support Maximum volume with bottom-port
Insert Required No No

Click HERE for ordering information and pictures of the MRQ™ autosampler vials.

Click HERE for ordering information and pictures of the Max Recovery™ autosampler vials.

 

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