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LC chromatograms of the glucuronides of JWH-018 M2-M6 (A) and JWH-073 M2-M6 (B). Different color tracings are representative of multiple reaction monitoring experiments used to detect the M2-M6 glucuronides of JWH-018 (A) and JWH-073 (B). Signals for m/z 520/344 (JWH-073 M2-M5), 534/358 (JWH-018 M2-M5 and JWH-073 M6), and 548/372 (JWH-018 M6) were used to monitor each glucuronide product.
