What are the differences between Waters amber and clear glass vials? - WKB265573

ENVIRONMENT

• Amber vials
• Clear glass vials

ANSWER

Waters clear glass vials are Type 1, 33-Expansion glass. The glass contains trace levels of boron and sodium.

Waters amber glass vials are Type 1, 51-Expansion glass. The glass is a bit more alkaline than the clear glass and contains trace levels of boron.

ADDITIONAL INFORMATION

The alkalinity differences in the glass would influence the pH of the solution in the vial.

Waters offers deactivated vials in clear and amber glass options; this vial modification can be an additional factor in comparing amber vs glass vials.

Other differences include that which is seen with the TruView vials; TruView vials are manufactured to be lower reactive glass surfaces and are additionally tested for non-specific binding of low abundant compounds.

For additional information, see What is the difference between certified and deactivated vials?

and the Sample Vials and Accessories chapter in. the Waters Chromatography Columns and Supplies Catalog.