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custom glass Surface Deactivation Critical Cleaning #Bar coding terminology

Ammonium Sulfate Treated Glass

All glass contain alkali metal ions, particularly sodium. These ions will tend to have increased concentration at the surface of the glass. Surface tension is the driving force since the energy of the glass would be reduced with this higher concentration. Aqueous products can react with these ions, causing them to be extracted into the product, which may cause an increase in pH for most neutral/acidic solutions. “Sulfur” treated glass takes advantage of this fact by pre-reacting the glass surface and exchanging these surface alkali with hydroxyl groups before product packaging. The surface, after treatment and washing, becomes depleted in alkali. These ions are no longer available for extraction, and the apparent durability properties of the glass are improved. (Certification: Certificate of Conformance).


Silanization

A methylsilylating agent is introduced by vapor phase deposition onto the surface of the disposable glassware. This method deactivates the glass surface by reducing surface tension and preventing non-specific binding, allowing for maximum recovery of trace analyte. This procedure works well for treating vials and inserts for use in analytical methodologies. (Certification: Certificate of Conformance).


Siliconization

A coating that provides lubrication and protection against alkalinization. This treatment works well for serum vials and pH sensitive storage applications. It is a method of deactivating a surface by reducing surface tension and preventing non-specific binding. (Certification: Certificate of Conformance).


The internal Siliconization of glass vials has three advantages. It further minimizes the interactions between the product and container. It prevents high viscosity products from sticking to the internal surface of the vials giving the glass bottle a prefect transparency. Finally, due to its hydrophobic properties, the silicone coating ensures a higher restitution rate down to the last drop of the product.