| Literature DB >> 23657736 |
Saadat Rastegarzadeh1, Zeinab Barkat Rezaei.
Abstract
A colorimetric assay method is described for the environmental detection of 2-mercaptobenzimidazole (MBI) using surface plasmon resonance of gold nanoparticles (AuNPs). Stable and dispersed AuNPs with intensified plasmon resonance were prepared in situ using a simple, rapid, and eco-friendly procedure by applying ascorbic acid as a reducer and cetyltrimethylammonium bromide as a stabilizer. The presence of MBI has a strong effect on the plasmon absorbance of AuNPs, which was employed for the detection of MBI. The calibration curve was linear in the range of 1.0 × 10(-6)-5.5 × 10(-5) mol/L of MBI; the detection limit was 8.4 × 10(-7) mol/L. The relative standard deviations for eight replicate measurements of 3.0 × 10(-6) and 5 × 10(-5) mol/L MBI were 3.9 and 1.4%, respectively. The method was successfully applied to the determination of MBI in tap, river, sea, and heat exchanger cooling water samples.Entities:
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Year: 2013 PMID： 23657736 DOI： 10.1007/s10661-013-3233-0
Source DB: PubMed Journal: Environ Monit Assess ISSN： 0167-6369 Impact factor: 2.513