Profile: D-Star Instruments, Inc. manufactures detectors and systems. We provide dual wavelength detectors, fixed wavelength detectors, isocratic HPLC systems, automated isocratic HPLC systems with variable wavelength detectors and constant flow piston pumps. Our products are used in routine industrial process monitoring, teaching, Q.C., research and chemical development. The DDW-1O dual wavelength detector is suitable for applications related to proteins, peptides and amino acid analysis, including ninhydrin amino acid derivatives. The DLC-20 and DLC-20P isocratic HPLC systems combine a precision UV-vis detector operating between 195-800 nm, with a single piston pump.