Determination of cadmium in tobacco by solid surface fluorescence using nylon membranes coated with carbon nanotubes.


A new methodology based on fluorescent signal enhancement of o-cresolphthalein (o-CPT) for traces of cadmium determination is proposed. The dye was retained on membrane filters in the presence of a micellar surfactant solution of carbon nanotubes (CNTs). All the experimental variables that influence both the preconcentration procedure and the fluorimetric… (More)
DOI: 10.1016/j.talanta.2012.12.048


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