Click HERE for Frequently Asked Questions (FAQ) about Autosampler Vials.

Click HERE to learn when to use Snap Caps or Screw Caps.

Click HERE for more information about PFAS Analysis.


No Application Notes information

Our goal is to provide the best Customer Experience possible. If you cannot find what you are looking for, have any questions or would like to give us a suggestion please use any of the following ways to contact us directly. We would love to hear from you.

  • Call us: 8:30AM - 6:00PM EST 1-732-380-8900 and hit 0#

  • Fax to us: 1-910-769-9435

  • Email Customer Support


We are always ready to lend any support we can. Our experienced scientists and professionals are ready to assist you with any technical support questions. Every question is considered a good question and we will work with you on a solution as fast as possible.

  • Call us: 8:30AM - 6:00PM EST 1-732-380-8900 and hit 0#

  • Fax to us: 1-910-769-9435

  • Email Technical Support


Discover the Ultimate Selection of Screw Caps for Chromatography | You Should Choose Our Screw Caps

Looking for the best screw caps for your autosampler vials? Look no further! We offer one of the largest selections of screw caps in the world, designed to meet all your needs.

Why Choose Our Screw Caps?

  • Superior Seal: Achieve a perfect seal every time, ensuring the integrity of your samples.

  • Variety: Choose from a wide range of septum types and cap colors to suit your specific requirements.

  • Compatibility: Our screw caps are fully compatible with all vials we sell, guaranteeing a perfect fit.

Important Note: For optimal performance, always match screw caps with vials that have the same thread design and pitch. This prevents misalignment and potential leaks.

Trust MicroSolv™ for Quality and Reliability

Our screw caps are not just popular—they’re the best choice for ensuring your autosampler vials perform flawlessly. Shop with us and experience the difference!

Our different screw cap brands have different qualities and specifications for different needs in the laboratory.

  • Soft-Guard™ - Developed with highest quality and low price.

  • BASIK™ brand - For general needs, most economical.

  • MicroSolv™ brand - For pharma analysis

  • AQ™ & AQR™ brands - LCMS & GCMS, lowest extractables

Click HERE for more details of the screw cap brands or view individual caps below. Click HERE for screw top vial ordering page.

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