Substances: 2-amino-4-6-dimethoxypyrimidine (LVFRCHIUUKWBLR-UHFFFAOYSA-N) 3-5-Diiodo-L-tyrosine (NYPYHUZRZVSYKL-ZETCQYMHSA-N) Acetochlor (VTNQPKFIQCLBDU-UHFFFAOYSA-N) Keywords: monitoring