Nondestructive Measurement of Insecticide Residues in Chinese Cabbage based on Infrared ATR Spectroscopy

Abstract

Chemical analysis methods such as gas or liquid chromatography have been applied to measure the pesticide residues in the agricultural products. On the farmer's side, consumers' concern on the safety of foods has caused the strongest needs for a rapid method so that pesticide measurement could be carried out before shipping the products from the fields. This paper describes the new nondestructive measuring method of the insecticide residues in chinese cabbages based on the attenuated total reflectance of the infrared region on the sample surface. The stability of the PLS calibration models for simultaneous multi elements have been estimated to propose practical measuring method.