Detectors for the Alliance HPLC System

Waters enables you to analyze a wide variety of compounds by offering a large portfolio of detection technologies.  These detectors have a number of options, including flow cells and nebulizers, to match your separation scale and help you to achieve the goals of your analysis.  Our detection technologies are synonymous with sensitivity, stability and usability, giving you all you need to tackle your laboratory’s LC detection challenges.


ACQUITY QDa Detector ACQUITY QDa Detector is a mass detector built around the needs of analytical scientists for chromatographic analysis. Robust, reliable and requiring no sample adjustments, it integrates with your current LC, ACQUITY UPLC, UPC2 and purification systems.
2489 UV/Visible (UV/Vis) Detector for Alliance HPLC Systems A versatile, dual-wavelength absorbance detector that offers simplicity for routine UV-based applications and high sensitivity for low-level impurity analysis.
2998 Photodiode Array (PDA) Detector for Alliance HPLC Systems Add spectral conformation to your absorbance detection methods while still maintaining high sensitivity and a wide linear dynamic range.
2424 Evaporative Light Scattering (ELS) Detector for Alliance HPLC Systems A complementary detection technique for semi- and non-volatile compounds with little or no UV absorbance. Compatible with both isocratic and gradient methods.
2414 Refractive Index (RI) Detector for Alliance HPLC Systems Offers high sensitivity, stability, and reproducibility, making this detector the ideal solution for the isocratic analysis of components with limited or no UV absorption.
2475 Fluorescence (FLR) Detector for Alliance HPLC Systems Delivers unsurpassed sensitivity and selectivity for quantifying low concentrations of target compounds, whether naturally fluorescent or derivatized with a fluorescent tag.
2465 Electrochemical Detector for HPLC Systems Provides sensitivity for a variety of applications needs. It is configurable with a variety of flow cells for variable volumes, reference electrodes and working electrodes.
432 Conductivity Detector for HPLC Systems Features a multi-electrode flow cell that offers exceptional sensitivity and stability for single-column or suppressor-based ion chromatography.