Arsenic determination in rice by hydride generation atomic absorption method

Contamination of soils and water environments with heavy metals is a serious and expanding problem. The entry of heavy metals through human activities has caused the pollution of many soils. Also, contamination of rice with heavy metals and its entry into the food chain can have harmful effects on human health. Arsenic species need to be carefully monitored in food due to their toxicity. In this article, the importance of measuring arsenic in rice by selective hydride production atomic absorption spectrometry, as well as the types of nuisances and methods to solve them, are discussed. The atomic absorption spectrometer must be equipped with an air-acetylene torch, a hydride vapor generator, a quartz absorption tube, an arsenic hollow cathode lamp, suitable for measuring at a wavelength of 193.7 nm.