Study on the stability of carbofuran and its metabolites in blood preserved at different conditions
10.13618/j.issn.1001-5728.2017.06.007
- VernacularTitle:不同保存条件下呋喃丹及其代谢物在血液中的稳定性研究
- Author:
Aiai FAN
1
;
Yanan SHEN
;
Feng ZHENG
;
Zhiwen WEI
;
Yao LIU
;
Shanlin FU
;
Keming YUN
Author Information
1. 山西医科大学法医学院
- Keywords:
forensic toxicology analysis;
carbofuran;
carbofuran phenol;
GC-MS/MS;
stability
- From:
Chinese Journal of Forensic Medicine
2017;32(6):578-582,587
- CountryChina
- Language:Chinese
-
Abstract:
Objective Study on the stability of carbofuran and its metabolite carbofuran phenol in blood preserved at different conditions,in order to provide a scientific evidence for forensic identification of carbofuran poisoning death. Methods The dogs were given intragastric administration with 4LD50(13.5mg/kg) of carbofuran, the blood were collected and divided into five equally groups preserved at 20℃(NC2.5mg/mL), 20℃(1%NaF), 20℃, 4℃ and -20℃, respectively. The concentrations of carbofuran and carbofuran phenol in above samples were detected by GC-MS/MS with MRM at 0d、5d、7d、15d、40d、83d and 150d. Results The concentration of carbofuran in preserved blood were found to be significant decrease at 7d(P < 0.05), then a steady decline. In each condition, the concentration of carbofuran phenol in preserved blood showed an increasing trend firstly, then a declined tendency. The concentration of carbofuran and carbofuran phenol descending fast in blood at 20 ℃ (NC) and 20 ℃ (1%NaF).Conclusion Carbofuran and carbofuran phenol in preserved specimens are found to be decomposed. The decomposition is quick at 20℃ and slow at -20℃. Citrate sodium and sodium fluoride are not suit for anticoagulation and antiputrefactiva. Biological specimens used for forensic identification of the carbofuran poisoning should be stored at refriferated or freezed, and be analyzed as soon as possible.
