Simultaneous determination of 114 pesticides in complex Chinese herbal medicine Fritillaria using ordered mesoporous carbon CMK-3 as a reversed-dispersive solid phase extraction sorbent

Abstract

Fritillaria, a traditional Chinese herbal medicine, is classified into many medicinal species and contains numerous complex components.

Simultaneous Determination of 108 Pesticide Residues in Three Traditional Chinese Medicines Using a Modified QuEChERS Mixed Sample Preparation Method and HPLC-MS/MS

“…Compared with ordinary agricultural products, TCMs are complex and diverse in composition, containing a wide range of active ingredients. F. thunbergii contains steroidal alkaloids, fatty acids, terpenoids, saponins, amino acids, and polysaccharides [ 8 ]. The main pharmacodynamic components of C. morifolium include flavonoids, volatile oil, and phenylpropanoid compounds [ 9 ].…”

“…Therefore, this method can be applied to a wide range of substrates and is currently used as the first choice for rapid pretreatment technology. Wu et al [ 8 ] used the QuEChERS method to establish the LC-MS/MS method for the detection of 114 pesticide residues in different Fritillaria species by optimizing the extraction solvent and sorbent amount. Yang et al [ 18 ] optimized the extraction time and adsorbent ratios to establish a multi-residue analysis method for 249 pesticides in Panax notoginseng.…”

A fluorescent aptasensor based on gold nanoparticles quenching the fluorescence of rhodamine B to detect acetamiprid

“…TCM crops depend widely on the use of pesticides in planting to protect them from pests and diseases and ensure quality and yield. 16,17 However, the excessive or incorrect use of these chemicals and pesticide residues may cause environmental pollution and affect the health of consumers. 18,19 The safety of TCM has been the focus of international attention for a long time.…”

Rapid Analysis of Residues of 186 Pesticides in Hawk Tea Using Modified QuEChERS Coupled with Gas Chromatography Tandem Mass Spectrometry

“…Modifications were made successively in the Association of Official Agricultural Chemists method with acetate buffer (AOAC 2007.01) [12] and the European Standard method (CEN 15662) with citrate buffer [13]. In recent years, the QuEChERS method has been further modified and widely used for multi-residue preparations in complex matrices because of its inherent properties: rapidity, simplicity, low cost, high efficiency, ruggedness, and safety [14,15]. At the same time, various materials have been investigated to enhance the clean-up capacity during the QuEChERS process, such as multiwalled carbon nanotubes (MWCNTs) and enhanced matrix removal (EMR) lipid.…”