The Varian Cary 300 UV-Vis Spectrophotometer is used worldwide for routine analysis and research. The control is carried out by the newly developed Cary WinUV software. This Windows-based software is characterized by its modular design, which makes it easy to use. The device comes with liquid sample holders and can of course be equipped with a variety of accessories for additional capabilities. Characteristics: . Wavelength accuracy (nm) - ± 0.2. Wavelength range (nm) - 190 - 900. Pre-monochromator - extends the working range of the Cary 300 beyond 5 absorption units by reducing the level of scattered light. Therefore, diluting a sample to bring it into a range that the spectrophotometer can measure is not necessary. Quartz coating - protects the optics from the environment and allows cleaning without damaging their reflective surface. Sealed optics - prevents exposure to corrosive environments. Variable column - allows optimal control over data resolution. The spectral bandwidth can be adjusted down to 0.2 nm (many instruments on the market are limited to a fixed SBW of 2 nm). Phase-synchronous wavelength drive - prevents peak thrust and peak suppression at high scan speeds. Double choppers - ensure that the sample and reference beams hit the detector at the same point, eliminating any errors due to detector non-uniformity. The large sample compartment - offers you more flexibility in terms of sample size. Centralized accessory control - all accessories are controlled by the accessory controller integrated into the Cary device. Instead of individual electronics for each accessory, the accessory controller provides the interface between the Cary software and the accessories. If your custom accessories fit the Cary device, you can use the accessory controller to control them. External accessories such as titrator, laser and pH meter can also be controlled. Labprocure is responsible for this device.