SPI-Dry Sample Preserver Capsules
SPI-Dry Sample Preserver capsules are specialized containers designed to be purged with an inert gas so that SEM, TEM, light microscopy, or liquid chromatography standard samples can be stored and transported under a positive pressure of pure inert atmosphere rather than under vacuum or ambient air.
Manufacturer: SPI Supplies — USA
Overview
SPI-Dry Sample Preserver capsules are specialized containers designed to be purged with an inert gas so that SEM, TEM, light microscopy, or liquid chromatography standard samples can be stored and transported under a positive pressure of pure inert atmosphere rather than under vacuum or ambient air. This distinguishes them from ordinary storage containers: they replace the reactive atmospheric air normally present with an inert gas and are built specifically for long-term positive-pressure storage, though they can also be used as a vacuum storage device if desired.
Inert-Gas Purge Capsules
Sealed capsules are designed for purging and backfilling with inert gas, enabling long-term storage of air- or moisture-sensitive samples under positive inert-gas pressure rather than vacuum. A vacuum can alternatively be used for faster purging before backfilling to positive pressure.
Specifications
| Specification | SPI-Dry Sample Preserver Capsules |
|---|---|
| Storage atmosphere | positive-pressure inert gas (purge and backfill); can alternatively be used under vacuum |
| Typical use | long-term storage/transport of air-sensitive SEM, TEM, LM, or LC standard samples |
| Key advantage | replaces reactive atmospheric air with inert gas for extended storage life |