Analysis of pesticide residues in tuber crops using pressurised liquid extraction and gas chromatography-tandem mass spectrometry

Khan, Zareen; Kamble, Narayan; Bhongale, Aarti; Girme, Madhuri; Chauhan, V. B.; Banerjee, Kaushik

doi:10.1016/j.foodchem.2017.08.091

Cited by 34 publications

(18 citation statements)

References 26 publications

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“…In the high concentration range (0.8−5 pmol L −1 ), the regression equation was i pc = −0.0049[paraoxon] −13.615 ( R 2 = 0.9954). Meanwhile, the LOD of Nafion/M‐Cell/CNT@AAIL/GCE biosensor was calculated to be 3 fmol L −1 (S/N = 3), which was 2–8 orders of magnitude lower than those of the various reported paraoxon assay methods, including spectrophotometry, fluorescence, electrochemistry, flow‐injection amperometric assay, and other methods (Table S1, Supporting Information). Therefore, the as‐fabricated biosensor showed ultrasensitivity and short detection time, which was more suitable for on‐site detection of trace level of OPP.…”

Section: Resultsmentioning

confidence: 96%

“…Organophosphate pesticides (OPP), which are widely used to control diseases and pests over the long‐term, have been seriously threatening to the environment and human . In general, the contents of OPP residues are very low and the components are complicated in crops or environment, so that OPP residues cannot be easily detected in real samples . Therefore, it is important and necessary to ultrasensitively and selectively determine OPP residues.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, many electrochemical OPP sensors were applied at positive potential, based on oxidation currents of analytes, where some antioxidants in real samples can also be oxidized. More importantly, the limit‐of‐detection (LOD) values of the reported OPP analytic methods (containing electrochemical and non‐electrochemical methods) generally are within 0.12 pmol L −1 to 200 nmol L −1 . Nevertheless, the OPP residues of persisting in crops and environment may be lower .…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, the limit‐of‐detection (LOD) values of the reported OPP analytic methods (containing electrochemical and non‐electrochemical methods) generally are within 0.12 pmol L −1 to 200 nmol L −1 . Nevertheless, the OPP residues of persisting in crops and environment may be lower . Therefore, it is of great significance to fabricate ultrasensitive and efficient OPP biosensor.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Rational Integration of Biomineralization, Microbial Surface Display, and Carbon Nanocomposites: Ultrasensitive and Selective Biosensor for Traces of Pesticides

Han

Chen

2018

Adv Materials Inter

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real-time detection, simple operation, high sensitivity, and miniaturization. [12,13] So far, the most of electrochemical OPP biosensors are based on the inhibiting effect of enzymes, particularly acetylcholinesterase (AChE). [14][15][16][17][18][19][20] However, the poor specificity of AChE and enzyme inhibition-based sensing mechanism can make electrochemical biosensors to have low selectivity, complicated analysis process, low sensitivity, and slow response, restricting their application. In addition, many electrochemical OPP sensors were applied at positive potential, based on oxidation currents of analytes, [21,22] where some antioxidants in real samples can also be oxidized. More importantly, the limit-of-detection (LOD) values of the reported OPP analytic methods (containing electrochemical and non-electrochemical methods) generally are within 0.12 pmol L −1 to 200 nmol L −1 . [5,[21][22][23][24][25][26][27][28][29][30][31][32][33][34] Nevertheless, the OPP residues of persisting in crops and environment may be lower. [4,5] Therefore, it is of great significance to fabricate ultrasensitive and efficient OPP biosensor.To overcome these above problems, organophosphate hydrolase (OPH) is introduced into electrochemical OPP biosensors to substitute enzyme inhibition-based biosensors. [35] OPH can specifically hydrolyze organophosphate compounds, where OPP are the substrate of the enzyme rather than the inhibitor. [1,36] Hence, OPH-based analytical methods generally show good selectivity and simple assay procedure. However, there are relatively few reports about the electrochemical biosensor based on OPH, compared with other biosensors. [27,37] In previous work, we prepared OPH-fused cell-cobalt phosphate (CP) bioinorganic hybrid materials, that is, mineralized cell (M-Cell), for enhancing the activity of OPH by the integration of allosteric effect, [38,39] biomineralization technology, [40] and cell surface display technology. [16] However, concomitantly, inorganic salt (CP) and whole-cell can reduce the conductivity and electrochemical activity of M-Cell hybrid catalysts. Therefore, it is interesting and necessary to improve the electrochemical activity of M-Cell hybrid catalysts in order to establish the electrochemical OPP biosensor with ultrasensitivity.As is well known, carbon nanotube (CNT) is extensively used to construct electrochemical biosensors, due to the large specific surface area, good stability, and high conductivity. [41] However, Nowadays, the over misuse of organophosphate pesticides (OPP) has seriously threatened human health and environment, and it is challenging and indispensable to establish biosensor for supersensitive, reliable, and fast detection of traces of OPP in real samples. This work provides an interdisciplinary strategy for the construction of electrochemical OPP biosensor with supersensitivity, high selectivity, simple operation, and fast response. First, amino acid ionic liquid (AAIL) is used as stabilizer to dramatically improve the dispersibility of carbon nanotube (CNT) i...

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rational Integration of Biomineralization, Microbial Surface Display, and Carbon Nanocomposites: Ultrasensitive and Selective Biosensor for Traces of Pesticides

Han

Chen

2018

Adv Materials Inter

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show abstract

“…To analyse residual pesticides in biological samples, many methods such as immunoassay 8–12 , gas chromatography (GC) 13–15 , liquid chromatography (LC) 16–18 , gas chromatography-mass spectrometry (GC-MS) 19–21 , and liquid chromatography-mass spectrometry (LC-MS and LC-MS/MS) 22,23 , have been developed. Nevertheless, studies on Z. latifolia have mainly focused on its physiological and biochemical properties, and few reports have described methods for pesticide residue determination in this plant.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of 25 pesticides in Zizania latifolia by dispersive solid-phase extraction and liquid chromatography-tandem mass spectrometry

Yu²,

Wang

et al. 2019

Sci Rep

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An improved quick, easy, cheap, effective, rugged, and safe (QuEChERS) method combined with ultrapressure liquid chromatography tandem mass spectrometric method (UPLC-MS/MS) was developed to simultaneously determine 25 pesticides in Zizania latifolia . The samples were extracted with methanol(MeOH) and 0.1% formic acid (80:20, v/v) and cleaned with C 18 absorbent and primary-secondary amine (PSA). LC separation was performed on a BEH C 18 UPLC column under the condition of gradient elution with the mobile phase consisted of 0.5% formic acid (10 mM ammonium acetate)/MeOH. External standard calibration method with matrix-matched was used for quantification, and good linearity was obtained over a concentration range of 0.5–100 μg/l, with correlation coefficients greater than 0.9901. The limit of detection (LOD) and the limit of quantitation (LOQ) of the 25 pesticides were in the range of 0.2–1.0 µg/kg and 0.5–3.3 µg/kg, respectively. The recoveries ranged from 72% to 118%, and the relative standard deviations (RSDs) were less than 20%. Thus, the proposed method is suitable for the simultaneous determination of 25 pesticides in Z. latifolia .

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Pressurized Liquid Extraction

2022

Extraction Techniques for Environmental Analysis

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Pressurized liquid extraction employs the use of solvents at high temperatures, above its boiling point and below its critical point, under enough pressure to maintain them in a liquid state. In this section, the essential criteria for the selection of appropriate operational parameters will be provided from a theoretical point of view. Additionally, the fundamental principles of PLE for solid samples are described. Due to the limitations of commercial equipment, the only possibility to deal with liquid samples is by transforming them into solids, for example, by adding an ab/adsorbent.

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Analysis of pesticide residues in tuber crops using pressurised liquid extraction and gas chromatography-tandem mass spectrometry

Cited by 34 publications

References 26 publications

Rational Integration of Biomineralization, Microbial Surface Display, and Carbon Nanocomposites: Ultrasensitive and Selective Biosensor for Traces of Pesticides

Rational Integration of Biomineralization, Microbial Surface Display, and Carbon Nanocomposites: Ultrasensitive and Selective Biosensor for Traces of Pesticides

Simultaneous determination of 25 pesticides in Zizania latifolia by dispersive solid-phase extraction and liquid chromatography-tandem mass spectrometry

Pressurized Liquid Extraction

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