A one adsorbent QuEChERS method coupled with LC-MS/MS for simultaneous determination of 10 organophosphorus pesticide residues in tea

Yu, Congcong; Hao, Dongyu; Qiao, Chun‐Feng; Wang, Ting; Liu, Songnan; Lan, Tao; Wang, Fenghe; Pan, Canping

doi:10.1016/j.foodchem.2020.126657

Cited by 63 publications

(26 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, Table S1 contains additional information, including regression equations and correlation coefficients. The LODs of the aptamer microarray method is comparable to that of other previous OP detection methods. ,− More importantly, as shown in Table S2, this method has obvious advantages in reagent consumption and rapid detection.…”

Section: Resultsmentioning

confidence: 71%

“…Many detection methods have been emerged to quantify various OPs in diverse substrates, such as gas chromatography with a flame photometric detector, , gas chromatography coupled with triple quadrupole mass spectrometry, liquid chromatography coupled to mass spectrometry, , and so on. These approaches have become the standard methods for detecting OPs due to their capacity to efficiently detect OPs with superior selectivity, high sensitivity, and multicomponent simultaneous analysis.…”

mentioning

confidence: 99%

See 1 more Smart Citation

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

et al. 2022

View full text Add to dashboard Cite

A novel high-throughput aptamer microarray fluorescent method based on thioflavin T (ThT) was established for the sensitive detection of phoxim, parathion, fensulfothion, and isocarbophos. In this work, the aptamers in binding buffer tended to have the antiparallel G-quadruplex structure, which can bind ThT and release its potential fluorescence signal. However, when the organophosphorus pesticides (OPs) were present, partial aptamers preferred to bind them, forcing the displacement of ThT from the G-quadruplex and resulting in the significant decrease in fluorescence signal. Under optimal experimental conditions (12T spacer, 300 nM aptamer, and 80 μM ThT), the OP aptamer microarray has low limits of detection of 25.4 ng/mL for phoxim, 12.0 ng/mL for parathion, 7.7 ng/mL for fensulfothion, and 9.9 ng/mL for isocarbophos. The accuracy and reliability of the method is further verified by testing the recovery rate of OPs spiked in two different complicated sample matrices (pears and radishes). It is worth mentioning that not only the developed aptamer microarray technology has low sensitivity and a broad spectrum, but it also allows for high-throughput and rapid analysis of a variety OPs, which overcomes some of the shortcomings of other OP detection methods.

show abstract

Section: Resultsmentioning

confidence: 71%

mentioning

confidence: 99%

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

et al. 2022

View full text Add to dashboard Cite

show abstract

“…With an increasing amount of added sorbents, the content of chlorophyll in purified solution remained nearly the same. This method can serve as a replacement for using standard combination of sorbents in analysis of organophosphorus pesticides in complex matrices due to its easiness, cheapness, and universality [72]. The authors aimed to develop a method that will enable analysis of multipesticide residues with high recoveries and low MEs.…”

Section: Different Cleanup Strategiesmentioning

confidence: 99%

The pesticide residue analysis in commodities with high content of chlorophyll based on the quick, easy, cheap, effective, rugged, and safe method: A review

Pszczolińska

Kociołek

2021

J of Separation Science

View full text Add to dashboard Cite

In multiresidue analysis, the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) is one of the most popular techniques routinely used by researchers during pesticide analysis of food and vegetable samples. Originally, the QuEChERS method was developed for analysis of pesticide residues from fruits and vegetables, but rapidly gained popularity in the extraction of analytes from different matrices. This analytical approach shows several advantages over traditional extraction techniques: it requires lower sample and solvent amounts while shortening the time of sample preparation. However, it presents some limitations for complex matrices such as those containing high amounts of chlorophyll. To overcome the problem of strong matrix effect and influence of interferences, different approaches are applied. Most are concerning modifications of the cleanup step, that is, sorbent type and its amount. Optimization of other parameters, such as sample size, hydration level, extraction solvent, and buffering, also has an impact on overall performance. Combining proper sample preparation with modern highly sensitive and selective detection techniques enables receiving desired limits of quantification. This article presents an overview of strategies employed by researchers for analysis of green, high chlorophyll content commodities and results obtained in their studies.

show abstract

“…1 Thus, the detection of the Ops residue in vegetables is an important means to ensure food safety. There are a series of analytical methods with high veracity to detect Ops, such as gas chromatography (GC), 5 liquid chromatography-mass spectrometry (LC-MS), 6 gas chromatography-mass spectrometry (GC-MS), 7 and enzyme-linked immunosorbent assay (ELISA). 8 However, high cost, tedious sample preparation, and professionals limit their application in the field of rapid detection.…”

Section: Introductionmentioning

confidence: 99%

A novel label-free electrochemiluminescence aptasensor using a tetrahedral DNA nanostructure as a scaffold for ultrasensitive detection of organophosphorus pesticides in a luminol–H₂O₂ system

Yang

Dong

et al. 2022

Analyst

View full text Add to dashboard Cite

show abstract

A one adsorbent QuEChERS method coupled with LC-MS/MS for simultaneous determination of 10 organophosphorus pesticide residues in tea

Cited by 63 publications

References 31 publications

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

The pesticide residue analysis in commodities with high content of chlorophyll based on the quick, easy, cheap, effective, rugged, and safe method: A review

A novel label-free electrochemiluminescence aptasensor using a tetrahedral DNA nanostructure as a scaffold for ultrasensitive detection of organophosphorus pesticides in a luminol–H₂O₂ system

Contact Info

Product

Resources

About

A one adsorbent QuEChERS method coupled with LC-MS/MS for simultaneous determination of 10 organophosphorus pesticide residues in tea

Cited by 63 publications

References 31 publications

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

High-Throughput Aptamer Microarrays for Fluorescent Detection of Multiple Organophosphorus Pesticides in Food

The pesticide residue analysis in commodities with high content of chlorophyll based on the quick, easy, cheap, effective, rugged, and safe method: A review

A novel label-free electrochemiluminescence aptasensor using a tetrahedral DNA nanostructure as a scaffold for ultrasensitive detection of organophosphorus pesticides in a luminol–H2O2 system

Contact Info

Product

Resources

About

A novel label-free electrochemiluminescence aptasensor using a tetrahedral DNA nanostructure as a scaffold for ultrasensitive detection of organophosphorus pesticides in a luminol–H₂O₂ system