Used WATERS 2487 #9029948 for sale

WATERS 2487 Differential Refractometer (DRI) is an advanced, sophisticated spectrometer designed for the analysis of a variety of materials. It is highly accurate and enables rapid measurement of both optical rotatory dispersion (ORD) and circular dichroism (CD). 2487 DRI features an adjustable wavelength range (121nm to 220nm) and up to 7 orders of polarimetry, allowing resolution of very weak chromophores while still accounting for unwanted higher-order terms. The spectrometer also offers advanced signal-to-noise ratio (SNR) that enhances detection of even weak signals. The instrument operates on the principle of spectroscopic rotation, which makes use of the fact that visible light traveling along different paths through a chiral medium experiences different degrees of rotation. The intensity of the incident light is divided into two beams which pass through the sample differently due to its chiral nature. The two beams are then recombined and sent to a detector, which measures in an optical rotation. This value can be converted to measure the molecular amount of the sample. The major components of the instrument include a sample chamber, a monochromator, a detector, and control electronics. The sample chamber holds the sample and is equipped with a peristaltic pump for liquid samples. The monochromator is used to select the desired wavelength of light and allows for fine tuning of resolution and sensitivity of the measurements. The detector captures the intensity of the light and sends it to the electronics for further processing. WATERS 2487 includes software for sample management, data collection, curve fitting, and data storage. Additionally, the ability to calculate enantiomeric ratios from CD data is supported. In conclusion, 2487 is a powerful, reliable, and versatile tool for analyzing molecular structures. It offers excellent resolution and sensitivity for both ORD and CD measurements and can be used for a wide variety of applications. The software and electronics provide efficient and easy-to-use data management. Overall, WATERS 2487 is an excellent choice for high-precision optical rotatory dispersion and circular dichroism measurements.