Variables: pH Keywords: monitoring Substances: 2 -3 -di-O-acetyl-5 -deoxy-5-fluorocytidin (NWJBWNIUGNXJGO-RPULLILYSA-N) 2-4-D (OVSKIKFHRZPJSS-UHFFFAOYSA-N) 5-Methyl-Benzotriazole (LRUDIIUSNGCQKF-UHFFFAOYSA-N)