Integrating the functions of a broadband integral light detector and a diode-array spectrometer, the X4-1 light analyzer can perform accurate photometric and colorimetric measurements of LEDs, ...

A PHOTOMETRIC method for chicken liver xanthine dehydrogenase based on the colorimetric determination of substrate disappearance 1 has been developed. It has been demonstrated to be very sensitive by ...

This article shows how the absorbance maxima of Ponceau-S is determined over a wavelength range of 220nm to 800nm using the Eppendorf BioSpectromenter ®. The methods of analysis using this ...