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, ...
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 ...
In a recent study published in the PLOS ONE journal, researchers assessed the feasibility of smartphone facial colorimetry as an anemia screening technique. Study: Feasibility of smartphone ...
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