![Relative quantification of polyethylene glycol 400 excreted in the urine of male and female volunteers by direct injection electrospray-selected ion monitoring mass spectrometry]()
Relative quantification of polyethylene glycol 400 excreted in the urine of male and female volunteers by direct injection electrospray-selected ion monitoring mass spectrometryDiane A.I. Ashiru; Kersti Karu; Mire Zloh; Rajesh Patel; Abdul W. Basit · 2011