Determination of vancomycin and meropenem in serum and synovial fluid of patients with prosthetic joint infections using UPLC–MS/MS

Author:

He Jiawei12,Wang Jing3,Cao Li4,Zhang Xiaogang4,Li Guoqing4,Xu Boyong4,Ji Baochao4,Zhao Jun12,Huang Junjie5ORCID,Yang Jianhua12ORCID

Affiliation:

1. Department of Pharmacy The First Affiliated Hospital of Xinjiang Medical University Urumqi China

2. Xinjiang Key Laboratory of Clinical Drug Research Urumqi China

3. Department of Pharmacy The Eighth Affiliated Hospital of Xinjiang Medical University Urumqi China

4. Department of Orthopaedics The First Affiliated Hospital of Xinjiang Medical University Urumqi China

5. College of Pharmacy Xinjiang Medical University Urumqi China

Abstract

AbstractNumerous studies have suggested that intra‐articular administration of antibiotics following primary revision surgery may be one of the methods for treating prosthetic joint infection (PJI). Vancomycin and meropenem are the two most commonly used antibiotics for local application. Determining the concentrations of vancomycin and meropenem in the serum and synovial fluid of patients with PJI plays a significant role in further optimizing local medication schemes and effectively eradicating biofilm infections. This study aimed to establish a rapid, sensitive, and accurate ultra‐performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS) method for determining the concentrations of vancomycin and meropenem in human serum and synovial fluid. Serum samples were processed using acetonitrile precipitation of proteins and dichloromethane extraction, while synovial fluid samples were diluted before analysis. Chromatographic separation was achieved in 6 min on a Waters Acquity UPLC BEH C18 column, with the mobile phase consisting of 0.1% formic acid in water (solvent A) and acetonitrile (solvent B). Quantification was carried out using a Waters XEVO TQD triple quadrupole mass spectrometer with an electrospray ionization (ESI) source in positive ion mode. The multiple reaction monitoring (MRM) mode was employed to detect the following quantifier ion transitions: 717.95–99.97 (norvancomycin), 725.90–100.04 (vancomycin), 384.16–67.99 (meropenem). The method validation conformed to the guidelines of the FDA and the Chinese Pharmacopoeia. The method demonstrated good linearity within the range of 0.5–50 μg/ml for serum and 0.5–100 μg/ml for synovial fluid. Selectivity, intra‐day and inter‐day precision and accuracy, extraction recovery, matrix effect, and stability validation results all met the required standards. This method has been successfully applied in the pharmacokinetic/pharmacodynamic (PK/PD) studies of patients with PJI.

Publisher

Wiley

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