Hongyan Zhang, Qiaoying Chang, Xingzhi Wang, Jian Li, Guoyu Qiu, F. Wu, Renyuan Zhu, M. Su
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引用次数: 0
Abstract
ABSTRACT A decoction is the most common form of Chinese herbal medicine dosing. An Angelica sinensis decoction was qualitatively and semi-quantitatively analyzed for 15 highly toxic pesticide residues by thermal desorption electrospray ionization mass spectrometry (TD-ESI/MS) with a triple quadrupole mass spectrometer in multiple reaction monitoring mode without pretreatment. The instrument response was optimal and sensitivity was highest with the following parameters: thermal desorption temperature, 300 °C; 0.1% formic acid aqueous solution-methanol (1:1,V:V) solvent; syringe pump flow rate, 150 μL/h; and sampler length, 5 cm. Good linearity was attained within the appropriate linear range with the detection limits ranging from 0.01–0.05 mg/L. The same positive sample was verified for QuEChERS pretreatment coupled with liquid chromatography tandem mass spectrometry, showing good agreement with TD-ESI/MS. The newly developed method was demonstrated to be a rapid, green, and efficient analytical method for screening 15 highly toxic pesticide residues in Angelica sinensis decoctions.
期刊介绍:
Food and Agricultural Immunology is an international open access journal publishing original immunological research with applications in food, agricultural, environmental and veterinary science. Submissions describing the use of immunological techniques and methods are particularly welcomed.
The journal aims to expand our understanding of the interactions at the interface of food and immune systems including studies on:
-Development of diagnostic systems – all types of ligand-based assays, e.g. antibody, aptamer
-Application of ligand-based assays for the detection or identification of molecules of interest in food science, agricultural research, veterinary investigations and clinical systems relating to food allergy or sensitivity to agricultural chemicals
-Effects of food on the immune system
-Studies on allergy and allergic reactions
-Investigations into food allergies
-Development of allergen-free food systems
-Development of novel assay formats
-Applications of assay systems to the monitoring of food items in relation to safety and labelling
-Food quality issues, e.g. speciation, adulteration and contamination
-Comparisons between different analytical techniques
The journal publishes research and review articles and is essential reading for food scientists, immunologists and all those concerned with the interaction between food and immune systems.