Starna Green reference material

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The Starna Green reference material can be used to qualify the absorbance and wavelength scales of spectrophotometers in the ultraviolet and visible regions of the spectrum (250–650 nm). It was specially developed for use with instruments with wider bandwidths (up to 20 nm), but is a useful general-purpose reference for all instruments.

The use of aqueous dye solutions is an established and well-recognised method for the validation of the absorbance scale and linearity of a spectrophotometer. Starna Green is a specially formulated dye solution with three broad but well-defined peaks that can be certified for both wavelength and absorbance value in the UV and visible regions, at bandwidths up to 20 nm.

The reference is available at four increasing concentrations, with nominal concentration values of 25, 50, 75 and 100.

For more information, visit https://www.starna.com/visible-absorbance/starna-green.