Nicolet is50 ftir nir spectrophotometer

A Nicolet iS50 FTIR -NIR spectrophotometer (Thermo Scientific, Waltham, MA, USA) together with a diffuse reflectance accessory (DRA, also called an integrating sphere), operating in the reflectance mode (λ = 1000 -2500 nm), at air atmosphere and at RT were used to quantify the reflectance of the powders. For measurements, the samples were maintained inside flat bottom glass vials to form pellets of 10 mm diameter and 5 mm thick and a Gold NIR Diffuse Reflection Standard (99.9 % reflective) was used as a reference to calibrate the baseline.

A Nicolet iS50 FTIR -NIR spectrophotometer (Thermo Scientific, Waltham, MA, USA) along with a diffuse reflectance accessory (DRA, also called an integrating sphere) was used to measure the reflectance properties of the powders. The spectra were obtained in air atmosphere and at RT.
In the present study the integrating sphere was operated in the reflectance mode in the region of 1000 -2500 nm. A Gold NIR Diffuse Reflection Standard (99.9% Reflective) was used as a reference to calibrate the baseline. The powder samples were supported inside flat bottom glass vials to form pellets of 10 mm diameter and 5 mm thick for measurements.