Study on the simultaneous measurement of residual level of three pesticides in nelumbinis semen using GC-MS/MS / 国际中医中药杂志
International Journal of Traditional Chinese Medicine
; (6): 959-964, 2018.
Artigo
em Chinês
| WPRIM (Pacífico Ocidental)
| ID: wpr-693703
Biblioteca responsável:
WPRO
ABSTRACT
Objective To establish a quantitative method for the simultaneous measurement of the residual level of three pesticides in Nelumbinis semen by GC-MS/MS. Methods The samples were extracted by acetonitrile and purify by Cleanert TPH column. The samples were then tested by GC-MS/MS. Information on relative retention time and mass charge ratio was used for qualitative analysis. The peak area obtained by secondary ion MS of bifenthrin (181.1/166.1)was used as the reference peak to calculate the relative correction factor for the peak area of fenpropathrin (265.1/210.1) and deltamethrin (252.9/93.0), to establish a method using bifenthrin as the reference substance to determinate there sidual quantity of three pesticides in Nelumbinis semen by GC-MS/MS. Results When the injection quantity of the sample containing bifenthrin,fenpropathrin and deltamethrin in the range of 0.01-0.1 ng , there was a good linear relationship between the injection quantity and peak are a Limitation of quantification (LOQ) of bifenthrin , fenpropathrin and deltamethrin were 4.321×10-4 ng, 3.435×10-4 ng, 8.913×10-3 ng, respectively. The average recovery rates of bifenthrin, fenpropathrin and deltamethrin were 93.5%, 93.5% and 93.8%, respectively. Conclusions The method of quantitative analysis of multi-components with a single-marker is simple, quick and accurate. It suitable for the detection of residual quantity of bifenthrin, fenpropathrin and deltamethrin in Nelumbinis semen.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Chinês
Revista:
International Journal of Traditional Chinese Medicine
Ano de publicação:
2018
Tipo de documento:
Artigo