Text this: One step solvent bar microextraction and derivatization followed by gas chromatography-mass spectrometry for the determination of pharmaceutically active compounds in drain water samples

  ______    _____     _____     _____      _____  
 /_____//  |  ___||  / ____||  |  ___||   / ___// 
 `____ `   | ||__   / //---`'  | ||__     \___ \\ 
 /___//    | ||__   \ \\___    | ||__     /    // 
 `__ `     |_____||  \_____||  |_____||  /____//  
 /_//      `-----`    `----`   `-----`  `-----`   
 `-`