Spectrophotometer Accessories and Replacement Parts
Perkin Elmer US LLC Fixed-Angle Specular Reflectance Accessory
Good quality spectra can be obtained from films on glossy flat surfaces, shiny paper, metallic surfaces, and semiconductor wafers such as silicon and germanium using the PerkinElmer Fixed-Angle Specular Reflectance Accessory. You can also obtain high-quality spectra of surface-treated materials, coatings, thinly lubricated surfaces, resin, and molded plastic surfaces. In semiconductor technology, Fixed-Angle Specular Reflectance is the technique of choice used to map the thickness of epitaxial layers on semiconductor wafers. Benefits Include: Easy to mount in sample compartment Three interchangeable aperture masks provided for studying small sample areas Optimized optical design and easy installation
Perkin Elmer US LLC Variable-Angle Specular Reflectance Accessory
The Variable-Angle Specular Reflectance Accessory can be used to obtain a spectrum of any flat, reflecting surface on plate or sheet material. Measurements of reflectance are useful in quality control of optical materials and for obtaining information about the crystalline structure of a material. The Variable-Angle Specular Reflectance Accessory can be used to: Measure reflection spectra of dielectrics at optimum angle Measure reflection-absorption spectra of thin films Measure refractive index and thickness of thin films Measure refractive indices from reflectance spectra using the Kramers-Kronig transformation
Medchemexpress LLC Nicotinic acid ribos 5mg
Nicotinic acid riboside is a NAD precursor in human cells Nicotinic acid riboside is an authentic intermediate of human NAD metabolism[1][2]
