Spectrophotometer Definition

DeSDu' wavelength bIH wov 'emvo' be wavelength range absorbance pagh spectrophotometry, Hap 'u' poj qualitative pagh quantitative. commonly lo' wavelength range: (1) 200 ~ 380 nm uv chep mIch, (2) 380 ~ 780 nm visible chep mIch, (3) 2.5 ~ 25 microns (according to yu'egh andlt;-andgt; 1 meter ~ 400 cm 4000 cm andlt;-andgt; 1) yoS infrared. infrared spectrophotometer atomic absorption spectrophotometer je lo' ultraviolet spectrophotometer, visible spectrophotometer (pagh colorimeter), jan. in order to accuracy precision 'aD 'ej ensure, vaj Hoch jan in accordance with national metrological verification regulations annex, correction verification regular basis provisions pagh.