Determination of Thiram Using Gold Nanoparticles and Resonance Rayleigh Scattering Method (CAT#: STEM-ST-0049-YJL)

Introduction

Thiram (THM) is a type of sulfur fungicides which belongs to the group of N,N-dialkyldithiocarbamate chemical pesticides. THM is a non-systemic fungicide used to prevent crop damage in the field and to protect harvested crops from deterioration in storage or transport. It is also used as a seed protecting agent (e.g. tomato, cucumber, watermelon, cereal grains and other seeds) and to protect turf from fungal diseases. Therefore, it is vital to develop sensitive and effective methods for the detection of THM in environmental samples.
Some of nano-noble metals such as gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) possess novel physical and chemical properties, especially the surface Plasmon resonance (SPR) or Resonance Rayleigh scattering (RRS), which resulted as they are widely used in the fields of analytical chemistry and biomedical science as probes and sensors in recent years, exhibit their signals in the visible spectral region under appropriate conditions and give corresponding localized surface plasmon resonance light scattering (LSPR-LS) band of the NPs.