Sample-multiplexing by derivatization using multiple analogous reagents for enhancing throughput in LC/ESI-MS/MS assay of steroids: Plasma 17α-hydroxyprogesterone as an example.
J Chromatogr B Analyt Technol Biomed Life Sci
; 1146: 122117, 2020 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-32335501
ABSTRACT
The measurements of steroids in biological fluids are of importance for the diagnosis and treatment of many diseases. Liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) has a high specificity and accuracy for the steroid analysis, whereas it has a lower analysis throughput, which could become a big issue in clinical practice. One of the promising solutions to this issue is the multiplexing of samples in the same injection. In this study, the utility of the sample-multiplexing by the derivatization using multiple analogous reagents was evaluated for enhancing the throughput of the LC/ESI-MS/MS assays of steroids. The plasma 17α-hydroxyprogesterone (17OHP), which is a diagnostic marker for the 21-hydroxylase deficiency, was chosen as the model analyte. The four plasma samples (20 µL each) were separately derivatized with one of four different analogous Girard-type reagents, combined, then injected together into the LC/ESI-MS/MS. By this method, four plasma samples could be analyzed within a single LC run. The developed method could significantly reduce the total LC run time (about 2/5 for 32 samples, compared with the conventional method) with a satisfactory sensitivity (lower limit of quantification 0.5 ng/mL), precision (intra- and inter-assay RSDs ≤ 4.0% and ≤ 3.5%, respectively) and accuracy (97.6-106.7%), and negligible matrix effect. The developed method had a satisfactory applicability for the quantification of 17OHP in the cord plasma samples.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hiperplasia Suprarrenal Congênita
/
17-alfa-Hidroxiprogesterona
/
Espectrometria de Massas em Tandem
/
Ensaios de Triagem em Larga Escala
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
J Chromatogr B Analyt Technol Biomed Life Sci
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Japão
País de publicação:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS