All Ultra Violet–Visible–Near Infrared (UV–Vis–NIR) Spectrometers are NOT Alike. 1 All Ultra Violet–Visible–Near Infrared (UV–Vis–NIR) Spectrometers are NOT Alike. 2 All Ultra Violet–Visible–Near Infrared (UV–Vis–NIR) Spectrometers are NOT Alike. 3 Specifications of Current Commercially-Available UV–Vis–NIR Spectrometers One Must Understand and Sweat the Analytical Performance Details Optical Systems Single Beam Single Monochromator Dual Single Beams Single Monochromator Double Beam Single Monochromator Double Beam Rowland off-circle Single Monochromator Double Beam Double Monochromator Double Beam Double out-of-plane Littrow Monochromator Double Beam Single Czerny-Turner Monochromator Double Beam Double Czerny-Turner Monochromator + Integrating Sphere and Other Attachments Spectral Resolution Wavelength Ranges 0.0001 nm 240 to 760 nm 0.1 nm 380 to 800 nm UV/Vis less than 0.05; NIR less than 0.1 190 to 840 nm 1.0 nm 200 to 1000 nm 1.5 nm 190 to 1100 nm 175 to 1800 nm Light Sources 190 to 1600 nm Mercury Lamp 190 to 2700 nm Xenon Flash Lamp 190 to 3200 nm Pulsed Xenon Flash Lamp 175 to 3300 nm Convergent Tungsten Lamp Tungsten-Halogen and Deuterium Lamps Halogen and Deuterium Lamps Price $ $$ $$$ $$$$ Deuterium and Tungsten Lamps Do You (Will You) Know and Understand the Details of the Instruments You Use in Your Work? Source (5 September 2021): LabCompare.Com 4
