Ric acid at 0.33 M/ACN/propan-2-ol (600:400:55), flow rate 0.8 mL/min
Ric acid at 0.33 M/ACN/propan-2-ol (600:400:55), flow price 0.8 mL/min). Detection is performed using a programmable Merck HITACHI FL Detector L-7485 (excitation 340 nm, emission 465 nm for OTA; 331…