Waters has introduced an addition to its vials product line. The TruView LC/MS certified vials include the stringent dimensional tolerances, UV and MS cleanliness tests required for the company's LC/GC and LC/MS certified vial lines. An additional feature of TruView vials is that the glass surface exhibits low polar analyte adsorption. The vials are manufactured under tightly controlled process conditions that limit the concentration of free ions on the surface of glass. Low levels of free ions on the surface of glass result in low analyte adsorption. Applications involving sensitive MS/MS spectrometers operate at analyte concentrations of ng mL^–1 to pg mL^–1 levels. At these concentrations, analyte adsorption can compromise analytical results. The TruView certified vials are tested for high recovery of analyte at 1 ng mL^–1 concentration using UPLC/MS/MS (MRM) and yield little adsorption.

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