US EPA

5185350 

Journal Article 

The electrochemical determination of N-nitrosamines at polymer modified electrodes via an adsorptive stripping voltammetric regime 

Collyer, SD; Butler, AJ; Higson S, PJ 

1997 

Yes 

Electroanalysis
ISSN: 1040-0397
EISSN: 1521-4109 

9 

13 

985-989 

English 

10.1002/elan.1140091304 

WOS:000071880500003 

BIOSIS COPYRIGHT: BIOL ABS. An adsorptive linear sweep stripping voltammetric method has been developed for the determination of nitrosamines at polymer modified gold electrodes. N-nitroso-N-butyl-N-propylamine has been quantified over a 10-10 M to 10-6 M concentration range at Nafion modified electrodes. CA coatings inhibited the determination of N-nitroso-N-butyl-N-propylamine, while small enhancements were observed at CAB modified electrodes. This improvement may be due to the anionic butyrate groups within the CAB polymer facilitating nitrosamine sorption. It is postulated, that the insulating effect of the polymer and the incorporation of anionic moieties compete to give either a net enhancement or depreciation of analytical sensitivity. 

N-nitrosamines; carcinogens; adsorptive stripping voltammetry (ASV); anionic modified polymer electrodes; polymer resistivity and dielectric constants