Highly specific colorimetric detection based on aggregation of <scp>l</scp>-cysteine functionalized gold nanoparticles for cypermethrin in water samples
Thitima Rujiralai, Nitchakarn Leelaharat, Wilairat Cheewasedtham
Abstract
and precision, expressed as relative standard deviations (RSDs), ranged from 1.9 to 7.3%. In the presence of interfering pesticides (carbaryl, ethion, profenofos and abamectin), only cypermethrin produced a significantly different response, confirming the selectivity of AuNPs@Cyst. Finally, AuNPs@Cyst was applied to determine cypermethrin in water samples, achieving very satisfied recoveries (>98.6%) and RSDs lower than 6.1%.
Topics & Concepts
Colloidal goldChemistryCysteineCypermethrinNanoparticleChromatographyCombinatorial chemistryNanotechnologyBiochemistryPesticideBiologyMaterials scienceEnzymeAgronomyAdvanced biosensing and bioanalysis techniquesAdvanced Nanomaterials in CatalysisBiosensors and Analytical Detection