Determination of 19 Organochlorine Pesticide Residues in Sargassum Fusiforme by GC-MS
- VernacularTitle:气相色谱-串联质谱法测定海藻羊栖菜中的19种有机氯农残
- Author:
Guiying JIN
1
;
Wanqing ZHANG
Author Information
1. 广东省药品检验所 广州510180
- Keywords:
Sargassum fusiforme;
Organochlorine pesticide residues;
GC-MS
- From:
China Pharmacist
2017;20(12):2173-2176
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a GC-MS method for determing 19 organochlorine pesticide residues in sargassum fusiforme. Methods:Nineteen organochlorine pesticide residues were simultaneously determined by GC-MS, and the established method was vali-dated. The HP-5 gas chromatography column (30 m × 0. 25 mm,0. 25 μm) was used. The column temperature was programming in-creased with initial temperature of 70℃, maintaining for 1min, then raising to 180℃ with a rate of 15℃·min-1 ,and then raised to 280℃ with a rate of 4℃·min-1 to keep 7min. The inlet temperature was 240℃. The MS detector was used with EI source at 230℃, and analysis mode was multiple reaction monitoring. Results:Sargassum fusiforme was analyzed. The separation degree of the standard and samples met the requirements. The recoveries of the organochlorine pesticides were 72%-127% except for hexachlorobenzene, and the relative standard deviation also met the requirements. The experimental results showed that the 19 organochlorine pesticides were not detected out in sargassum fusiforme. Conclusion: The method provides the technical parameters for the determination of organo-chlorine pesticide residues in sargassum fusiforme.
