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The photodiode array (PDA) detector, sometimes called a diode array detector (DAD), is a common type of detector used in HPLC. A PDA detector can monitor a sample at more than one wavelength. With a PDA detector, researchers can detect characteristics like identity, quantity, and purity as analytes exit the HPLC column. For best prices and a great selection, shop GenTech Scientific’s inventory of PDA detectors today!