In order to test the sensitivity of colorimetric technique in phytodiagnostics, with particular regard to color variations caused by water stress, and to verify the potential for use in irrigation ...

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 ...

There are a multitude of available test procedures and methods for water and wastewater treatment operators. They range from colorimetric, titrimetric, electrometric (meter & probe), turbimetric, ...