Optimization and validation of liquid–liquid extraction with low-temperature purification (LLE-LTP) for determining fluopyram fungicide in water samples using HPLC-DAD - Freitas, Lucas Victor Pereira de; Terra, Gleysson de Paula; Santos, Silas de Souza; Sicupira, Lázaro Chaves; Silvério, Flaviano Oliveira (Analytical Methods, 2022)