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Improvement and validation the method using dispersive liquid–liquid microextraction with in situ derivatization followed by gas chromatography–mass spectrometry for determination of tricyclic antidepressants in human urine samples

✍ Scribed by Rie Ito; Masaru Ushiro; Yuki Takahashi; Koichi Saito; Tetsuo Ookubo; Yusuke Iwasaki; Hiroyuki Nakazawa

Book ID: 116620605
Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 535 KB
Volume: 879
Category: Article
ISSN: 1873-376X
DOI: 10.1016/j.jchromb.2011.10.012

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## Abstract A new technique for sample preparation on‐line with liquid chromatographic/tandem mass spectrometric (LC/MS/MS) assay was developed. Microextraction in a packed syringe (MEPS) is a new miniaturized, solid‐phase extraction technique that can be connected on‐line to gas or liquid chromato