Basic Compound Concentration and Adsorption Study in Autosampler Vials – AppNote

Comparing Cetylpyridinium Chloride Adsorption on RSA v. Standard Autosampler Vials In this study, the importance of 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 concentrations. If this […]

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RSA Vial Adsorption Studies. Compound Dependent in HPLC Analyses – AppNote

Comparison to conventional glass autosampler vials. Various test solutes are investigated in this study in order to determine the role that functional groups play in analyte loss to the vial. Percent loss increased in order of increasing number of amine groups and was greatest with permanently cationic species (Thiamine and Cetylpyridinium chloride). Furthermore, percent loss […]

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