In:
Forensic Toxicology, Springer Science and Business Media LLC, Vol. 40, No. 2 ( 2022-07), p. 332-339
Abstract:
This study aimed to develop and validate an ultraperformance liquid chromatography–tandem mass spectrometry to simultaneously determine diquat (DQ) and its two primary metabolites in rat plasma and its application to the toxicokinetic study. Method The chromatographic separation of DQ and its two primary metabolites was performed with hydrophilic interaction chromatography column by adding formic acid and ammonium acetate in mobile phase in stepwise elution mode. DQ and its two primary metabolites were detected by liquid chromatography–tandem mass spectrometry in positive mode. Results The lower limit of quantification ranging from 0.3 to 3.0 ng/mL for DQ and its two primary metabolites was achieved by using only 50 μL of rat plasma. The maximum concentration ( C max ) was 977 ng/mL, half-life ( t 1/2 ) was 13.1 h, and area under the plasma concentration–time curve (AUC 0–t ) was 2770 h*ng/mL for DQ, C max was 47.1 ng/mL, t 1/2 was 25.1 h, and AUC 0–t was 180 h·ng/mL for diquat monopyridone (DQ-M) and C max was 246 ng/mL, t 1/2 was 8.2 h, and AUC 0–t was 2430 h·ng/mL for diquat dipyridone (DQ-D), respectively. Conclusions The validated method was shown to be suitable for simultaneous determination of diquat and its two primary metabolites in rat plasma. This study is the first to study the toxicokinetics of DQ and its two primary metabolites.
Type of Medium:
Online Resource
ISSN:
1860-8965
,
1860-8973
DOI:
10.1007/s11419-022-00623-z
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2022
detail.hit.zdb_id:
2234828-1
SSG:
2,1
Permalink