%0 Journal Article %T Preconcentration of morphine in urine sample using a green and solvent-free microextraction method %A Bamdad Riahi-Zanjani %A Mahdi Balali-Mood %A Zarrin Es’haghi %A Asoodeh, Ahmad %A Adel Ghorani-Azam %J Green Processing and Synthesis %@ 2191-9542 %D 2019