Overview
Amber polypropylene autosampler vials are commonly used for samples that require protection from light exposure while maintaining the chemical compatibility advantages of polypropylene.
As part of ongoing product improvement efforts, MICROSOLV replaced an earlier amber polypropylene vial formulation after observations of inconsistent color stability over time. The updated product provides improved manufacturing consistency while maintaining the performance characteristics expected for chromatography applications.
Product Transition
The previous amber polypropylene vial:
- Catalog Number 9502S-PP-AMBER has been discontinued.
- The replacement product is: Catalog Number 9502S-PP-AM
The change was implemented to improve material consistency and eliminate variability associated with the earlier formulation.
Reason for the Update
The previous material occasionally exhibited color changes that could vary over time and from lot to lot.
Although the color variation did not necessarily indicate a performance issue, product appearance could become inconsistent and create uncertainty for users evaluating incoming products. To improve consistency, a revised polypropylene formulation was adopted.
Appearance of the Current Product
Users may notice that the current amber polypropylene vials appear:
- More opaque
- Slightly darker in appearance
- Less transparent than earlier versions
This appearance is normal and reflects the characteristics of the updated material formulation.
The increased opacity should not be interpreted as a manufacturing defect or quality concern.
Performance Benefits
The updated design was selected to provide:
- Improved color stability
- Greater lot-to-lot consistency
- Reliable light-protection characteristics
- Consistent manufacturing quality
These improvements help support routine laboratory use and long-term product reliability.
Application Compatibility
Amber polypropylene autosampler vials remain suitable for:
- HPLC applications
- UHPLC applications
- LC-MS workflows
- Light-sensitive samples
- General analytical laboratory use
Users can continue to employ the vials according to established laboratory procedures.
Key Takeaways
- The original 9502S-PP-AMBER vial has been discontinued.
- Catalog Number 9502S-PP-AM is the replacement product.
- The earlier formulation was replaced due to color stability concerns.
- The current vial may appear more opaque than previous versions.
- Increased opacity is normal and reflects the updated material formulation.
- The revised product offers improved consistency and appearance stability.
