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Updated: Sep 4, 2025

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
Published on: April 23, 2019
Development of a Sensitive and Rapid HPLC-MS Method for Dihydrocodeine and Dihydromorphine: Application to
Zhenyu Zhu1,2, Xiaomei Huang3, Zheng Tan1,4
1Department of Pharmacy, The Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Furong District, Changsha, 410000, Hunan Province, China.
Abstract:
A ultraperformance liquid chromatography-tandem mass spectrometry method has been developed to determine dihydrocodeine (DHC) and dihydromorphine (DHM) in human plasma using dihydrocodeine-d6 and desomorphine as internal standards (IS). Acetonitrile-water-ammonium format was used as the mobile phase, in gradient elution on a C18 column. The concentration of DHC and DHM was determined in the positive ionization mode of mass spectrometry. The total chromatogram run time was 3.2 min, and the linear ranges of DHC and DHM were 1.000-400.0 ng/mL and 0.050-20.00 ng/mL, respectively. The method was fully validated concerning precision, accuracy, selectivity, linearity, recovery, stability and matrix effect. The method had been successfully applied to the bioequivalence test. In addition, we found that a high-fat diet impacts the Tmax and t1/2 of DHC.
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