Vials, Snap Top, Glass. Clear / Clear Insert, 300ul with Write-On Patch and fill lines, Fused Insert™. An 11mm snap ring and 12x32mm outer dimensions. For use as an autosampler vial. RSA Brand. 100/PK.
Additional Info:
The 9532C‑0CV‑RS RSA Brand Snap‑Top Autosampler Vial is a 300 µL clear glass vial with an integrated Fused Insert™, engineered for chromatographic applications where maximum recovery, low adsorption, and precise vial geometry are critical. Both the vial and insert are manufactured from first hydrolytic, Class A, Type 33 borosilicate glass with Reduced Surface Activity (RSA) to minimize unwanted interactions with sensitive analytes.
Integrated ceramic write‑on patches and fill lines provide durable labeling and volume reference that resist smearing or scratching when exposed to common laboratory solvents. This supports reliable identification in both routine and documentation‑driven workflows.
Bottom depths and vial heights are tightly designed and QC‑controlled to support maximum recovery while protecting autosampler needles. The RSA® Fused Insert™ is engineered to sit slightly above the vial lip, allowing improved contact with the cap septum for a more reliable seal. Unlike competitive designs, the insert is not fused to the vial bottom, eliminating stress fractures at the fusion point and helping prevent leakage.
The RSA glass chemistry does not contribute sodium ions or other surface effects that can influence pH, making these vials well suited for low‑abundance and pH‑sensitive analytes. Reduced surface activity is tested and certified for each production lot, ensuring consistent performance from batch to batch and vial to vial.
Important Use Guidance Snap caps and snap‑top vials are not generally recommended for LC‑MS applications or other critical analyses involving volatile solvents, including aqueous systems. For these applications, screw‑thread vials with properly matched caps and septa are generally preferred to reduce solvent evaporation and maintain sample integrity.
For additional technical background, see RSA® Reduced Surface Activity Autosampler Vials.
Key Features
Reduced Surface Activity Glass Chemistry
First hydrolytic, Class A, Type 33 borosilicate glass
Reduced surface activity minimizes analyte adsorption
Does not introduce sodium ions or cause pH changes
Fused Insert™ Design
Integrated clear glass insert for low‑volume work
Insert sits above vial lip for improved septum sealing
Not fused to vial bottom, reducing crack and leak risk
Precision Autosampler Geometry
QC‑controlled bottom depths and heights
Supports maximum recovery and needle safety
Designed for consistent autosampler performance
Durable Write‑On Patch and Fill Lines
Ceramic write‑on surface resists smearing and scratching
Permanent fill lines for accurate volume reference
Suitable for solvent‑exposed workflows
Why Choose RSA® 300 µL Snap‑Top Fused Insert Vials?
The 9532C‑0CV‑RS is selected when laboratories need:
Low‑adsorbing glass for sensitive or low‑abundance analytes
Improved recovery from very small sample volumes
Enhanced sealing performance with snap‑top closures
Certified lot‑to‑lot consistency in glass chemistry
Reliable performance in demanding chromatography workflows
These vials are widely used in pharmaceutical research, regulated QC environments, and method development, where vial geometry and surface chemistry directly influence analytical results.
Typical Applications
HPLC and UHPLC autosampling
Low‑volume and trace‑level analysis
pH‑sensitive compounds
Method development and validation
Quality control workflows