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667-UV5 Holmium oxide liquid filter

Ho (CLO) Liquid Filter 667-UV5

Holmium oxide dissolved in perchloric acid is highly suitable for checking the wavelength accuracy of spectrophotometers both in the UV and the visible range. It shows a spectrum with a multitude of highly defined peaks. The heights and positions of these peaks are dependent on and will vary with the chosen slit width of the measuring instrument. In the range between 240 nm and 650 nm the filter shows a spectrum with a multitude of highly defined peaks.

cutout of cut_out_asset_1054.jpg Typical spectrum of holmium oxide dissolved in perchloric acid, measured with a slit width of 1 nm.

Article-no.667005
ApplicationAssessment of wavelength accuracy in accordance with Ph. Eur in both UV and visible range
ContentHolmium oxide dissolved in perchloric acid
Standard certificationWavelength: 241.15; 287.15; 361.5; 536.3; 640.5
Slit width: 1nm
with DAkkS calibration certificate
Possible certificationsFurther wavelenths: 250; 278; 333; 345; 386; 416; 451; 485 nm
Slit widths: all until 2 nm, above the peaks become blurred

Article-no.667005USP
ApplicationAssessment of wavelength accuracy in accordance with USP in both UV- and visible range
ContentHolmium oxide dissolved in perchloric acid
Standard certificationWavelength: 241; 250; 278; 287; 333; 345; 361; 386; 416; 451; 468; 485; 536; 640 nm
Slit width: 1 nm
with DAkkS calibration certificate
Possible certificationsSlit widths: all until 2 nm, above the peaks become blurred

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