Basic Compound Adsorption Study with Time Dependence in Vials – AppNote

Comparing Cetylpyridinium Chloride Adsorption in Glass Autosampler Vials This Study investigated the effect of Analyte loss due to Adsorption by hydroxyl groups (aka Silanols) on the glass surface of Autosampler Vials over Time. It is well known that the surface of standard, including industry leading Borosilicate Glass Vials are populated with Silanols and Basic Analytes […]

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Basic Compound Concentration and Adsorption Study in Autosampler Vials – AppNote

Comparing Cetylpyridinium Chloride Adsorption on RSA Glass v. Standard Autosampler Vials In this study, the importance of Analyte Concentration is demonstrated when dealing with Adsorption during analyses of Basic Solutes. Using conventional glass of an industry leading supplier, the basic test analyte Cetylpyridinium Chloride showed notable loss to Adsorption with the Vial at the lower […]

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RSA-Pro X Improves Quantitation Precision with HPLC – AppNote

RSA-Pro X™ – Hydrolytically Stable Glass Vials & Low Volume Glass Inserts Silanol groups (Si-OH) on the surface of glass has been known to cause not only empirical quantitative loss but also inaccurate quantitation, vial to vial and run to run over time.  Silanol sites are very reactive and can produce among other things, imprecise […]

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