Simultaneously Quantifying Isoniazid, Pyrazinamide, Ethambutol and Rifampicin in Human Cerebrospinal Fluid by HPLC-MS/MS / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 1209-1215, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-858273
ABSTRACT
OBJECTIVE:
To develop a LC-MS method for simultaneously quantifying four anti-tuberculosis drugs [isoniazid(INH), pyrazinamide(PZA), ethambutol(EMB) and rifampicin(RIF)] in human cerebrospinal fluid and to help guide the clinical medication.METHODS:
The drugs in cerebrospinal fluid were extracted by acetonitrile precipitation, and separated on ZORBAX Bonus-RP column(2.1 mm×150 mm, 3.5 μm) with the mobile phase of aqueous solution(containing 0.1% formic acid)-acetonitrile(containing 0.1% formic acid)(8020) at a flow rate of 0.25 mL•min-1. Multiple reaction monitoring(MRM) mode was performed combined with electrospray ionization source operating in the positive ionization mode.RESULTS:
The liner calibration curves of INH, PZA, EMB and RIF were obtained in the concentration range of 20-5 000(r=0.998 6), 120-30 000(r=0.997 7), 20-5 000(r=0.999 4), 60-15 000(r=0.996 2)ng•mL-1, respectively. The intra-and inter-day precision was less than 15% and the absolute recovery was above 75%. This method was successfully applied to analyze the drugs in cerebrospinal fluid from six clinical samples.CONCLUSION:
The method is rapid, simple, sensitive and accurate, and proved to be suitable for clinical therapeutic drug monitoring.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Pharmaceutical Journal
Ano de publicação:
2018
Tipo de documento:
Artigo
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