Real-time Assay of Toxic Lead in In Vivo Living Plant Tissue
Toxicological Research
; : 293-298, 2013.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-167290
Biblioteca responsável:
WPRO
ABSTRACT
A method of detecting lead was developed using square wave anodic stripping voltammetry (SWASV) with DNA-carbon nanotube paste electrode (CNTPE). The results indicated a sensitive oxidation peak current of lead on the DNA-CNTPE. The curves were obtained within a concentration range of 50 ngL-1-20 mgL-1 with preconcentration time of 100, 200, and 400 sec at the concentration of mgL-1, microgL-1, and ngL-1, respectively. The observed relative standard deviation was 0.101% (n = 12) in the lead concentration of 30.0 microgL-1 under optimum conditions. The low detection limit (S/N) was pegged at 8 ngL-1 (2.6 x10-8 M). Results showed that the developed method can be used in real-time assay in vivo without requiring any pretreatment and pharmaceutical samples, and food samples, as well as other materials requiring water source contamination analyses.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Plantas
/
Água
/
Nanotubos
/
Eletrodos
/
Limite de Detecção
Idioma:
Inglês
Revista:
Toxicological Research
Ano de publicação:
2013
Tipo de documento:
Artigo