On-line solid-phase enrichment coupled to packed reactor flow injection analysis in a green analytical procedure to determine low levels of folic acid using fluorescence detection

por Emara, Samy, Masujima, Tsutomu, Zarad, Walaa, Kamal, Maha, EL-Bagary, Ramzia
Publicado 2012

On-line coupling of derivatization with pre-concentration to determine trace levels of methotrexate

por Emara, Samy, Masujima, Tsutomu, Zarad, Walaa, Kamal, Maha, EL-Bagary, Ramzia
Publicado 2013

Direct nano-electrospray ionization tandem mass spectrometry for the quantification and identification of metronidazole in its dosage form and human urine

por Amer, Sara, Zarad, Walaa, El-Gendy, Heba, Abdel-Salam, Randa, Hadad, Ghada, Masujima, Tsutomu, Emara, Samy
Publicado 2019

Dilute-and-shoot-based direct nano-electrospray ionization tandem mass spectrometry as screening methodology for multivitamins in dietary supplement and human urine

por Amer, Sara, Zarad, Walaa, El-Gendy, Heba, Abdel-Salam, Randa, Hadad, Ghada, Emara, Samy, Masujima, Tsutomu
Publicado 2020