Use DU spectrophotometer

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beckman du spectrophotometer in use


the beckman spectrophotometer first easy-to-use single instrument containing both optical , electronic components needed ultraviolet-absorption spectrophotometry within single housing. user insert cell tray standard , sample cells, dial desired wavelength of light, confirm instrument set measuring standard, , measure amount of absorption of sample, reading frequency simple meter. series of readings @ different wavelengths taken without disturbing sample. du spectrophotometer s manual scanning method extremely fast, reducing analysis times weeks or hours minutes.


it accurate in both visible , ultraviolet ranges. working in both ultraviolet , visible regions of spectrum, model du produced accurate absorption spectra obtained relative ease , accurately replicated. national bureau of standards ran tests certify du s results accurate , repeatable , recommended use.


other advantages included high resolution , minimization of stray light in ultraviolet region. although not cheap, initial price of $723 made available average laboratory. in comparison, in 1943, ge hardy spectrophotometer cost $6,400. practical , reliable, du rapidly established standard laboratory equipment.








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