LC-MS/MS Analysis of Edrophonium, Neostigmine, and Pyridostigmine in Plasma Using HILIC Chromatography and Weak Cation-Exchange SPE

Joanne Jones, Thermo Fisher Scientific, Runcorn, UK Appli cat i on N ote 2 0 9 3 6 SPE and LC-MS/MS Method for the Determination of 25-Hydroxyvitamin D2 and 25-Hydroxyvitamin D3 from Human Plasma Key Words Solid phase extraction, SPE,…

Appli cat i on N ote 2 0 9 3 9 SPE, LC-MS/MS Method for the Determination of Ethinyl Estradiol from Human Plasma Krishna Rao Dara, Dr. Tushar N. Mehta, Asia Pacific Center of Excellence, Thermo Fisher Scientific, Ahmedabad, India…

J. Jones, Thermo Fisher Scientific, Runcorn, Cheshire, UK Key Words SPE, SOLA CX, Syncronis C18, nicotine, cotinine, trans-3-hydroxycotinine Abstract A liquid chromatography tandem mass spectrometry method for nicotine, cotinine, and trans-3-hydroxycotinine in urine has been developed. Using Thermo Scientific™ SOLA™…

J. Jones, Thermo Fisher Scientific, Runcorn, Cheshire, UK Key Words SPE, SOLA CX, Syncronis C18, nicotine, cotinine, trans-3-hydroxycotinine Abstract A liquid chromatography tandem mass spectrometry method for nicotine, cotinine, and trans-3-hydroxycotinine in urine has been developed. Using Thermo Scientific™ SOLA™…