Thermo Fisher, VF-D11-A-01, Vanquish™ Diode Array Detectors and Multiple Wavelength Detectors

Vanquish™ Diode Array Detectors and Multiple Wavelength Detectors is designed for UV-visible detection in Vanquish liquid chromatography and ultrahigh-performance liquid chromatography systems. The exact VF-series configuration is a diode array detector with a wavelength range of 190–800 nm; it is not the multiple-wavelength detector or a column compartment. Diode-array acquisition enables chromatographic peaks to be examined at several wavelengths while also collecting spectral information, supporting analyte identification and monitoring of minor impurities beside higher-concentration main components. The detector supports up to ten absorbance channels and a full spectral field during acquisition, with data rates up to 250 Hz under supported conditions. Optical design and low-noise electronics help limit baseline drift, and integrated wavelength verification uses a holmium-oxide filter. Baseline drift is less than 1 mAU per hour at 254 nm. Available flow-cell formats include a standard stainless-steel cell with a 10 mm path length and 13 µL volume and a biocompatible PEEK alternative, together with semi-micro configurations. This detector provides spectral and absorbance measurements within an assembled LC system; it does not independently pump samples or perform chromatographic separation. Spectral data can complement single-wavelength chromatograms when overlapping peaks or impurity signals require additional absorbance information. A diode-array design therefore provides more information than a detector limited to one fixed wavelength.