
																
																	Solid-phase extraction for picrocrocin determination in the quality control of saffron spice (Crocus sativus L.)
																
																
																
															Keywords: استخراج فاز جامد (SPE); Solid phase extraction (SPE); Picrocrocin; Crocetin esters; Saffron spice; UV–vis spectrophotometry; RP-HPLC