The basic working principle of colorimetric sensing is colorimetry, which is a visible change in color that results from a chemical interaction between the sensing/detecting material and the target ...

Having immediate access to clean freshwater is often taken for granted. The different stages of treatment that raw water from streams, rivers and lakes experiences to make sure a plentiful supply of ...

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 ...