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667-UV25 Diymium Liquid Filter

Didymium Liquid Filter 667-UV25

The Diymium filter consists of a solution of Praseodymium and Neodymium dissolved in perchloric acid. This filter is highly suitable for checking the wavelength accuracy of spectrophotometers both in the UV and the visible range. In the range between 329 nm and 864 nm the filter shows a spectrum with a multitude of highly defined and characteristic peaks.

Didymium Flüssigfilter Spektrum Typical spectrum of praseodym and neodym dissolved in perchloric acid, measured with a slit width of 1 nm.

Article-no.667025
ApplicationAssessment of wavelength accuracy in both UV and visible range
ContentDidymium in perchloric acid
Standard certificationWavelengths: 329; 469; 575; 740; 864 nm
Slit width: 1nm
with DAkkS calibration certificate
Possible certificationsFurther wavelenths: 354; 444; 482; 512; 522; 732; 794; 801 nm
Slit widths: all untill 2 nm, above the peaks become blurred

Article-no.667025USP
ApplicationAssessment of wavelength accuracy in both UV and visible range according to USP
ContentDidymium in perchloric acid
Standard certificationWavelengths: 732; 740; 794; 801; 864 nm
Slit width: 1nm
with DAkkS calibration certificate
Possible certificationsSlit widths: all untill 2 nm

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