Investigation on residue of triadimefon and its metablites in ginseng
- VernacularTitle:三唑酮及其代谢产物在人参中的残留分析方法研究
- Author:
Bo DAI
;
Hongyu JIN
;
Jingai TIAN
;
Peng SUN
;
Ruichao LIN
- Publication Type:Journal Article
- Keywords:
ginseng;
triadimefon;
triadimenol A;
triadimenol B;
GC-MS
- From:
Chinese Traditional and Herbal Drugs
1994;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To set up a clean-up method using gel permeation chromatography(GPC)and ENVI-Carb-SPE.The residues of triadimefon and its metablites,triadimenol A and triadimenol B in ginseng were detected by GC-MS with negative chemical ionization(NCI).Methods The sample was extracted with acetone and the extract was cleaned using GPC and ENVI-Carb-SPE.Based on GC-MS(NCI)the pesticides were separated on a DB-5MS column using a temperature program and were detected with a mass selective detector in selective ion monitoring(SIM)mode.The reference solution was prepared by the blank sample extract to overcome the matrix effect,the external reference method was used to detect.Results Three pesticides were separated within 10 min.The average spiked recoveries in three levels were 90%—105% with relative standard deviations(RSD)below 6%(n=6)in roots and stems.The limits of detection(LOD)of triadimefon and triadimenols were 0.1 and 10 ?g/L.The precision was below 2%(n=6).Conclusion The method is sensitive for the residue analysis of three pesticides and could be used to the triadimefon and triadimenols detection and security control in ginseng.
