Simultaneous determination of 15 phenylurea herbicides in rice and corn using HPLC with fluorescence detection combined with UV decomposition and post-column derivatization

Mou, Renxiang; Chen, Mingxue; Zhi, Jian-Liang

doi:10.1016/j.jchromb.2008.09.022

Cited by 47 publications

(16 citation statements)

References 20 publications

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“…It has high polar nature and solubility in water; as a result, its residues have high probability to be present in soil and aquatic environment [19]. FU is highly toxic, and therefore, its determination is extremely important [4,[20][21][22][23]. However, no efforts have been developed for the determination of FU by using electrochemical amperometry method.…”

Section: Introductionmentioning

confidence: 99%

High-performance electrochemical amperometric sensors for the sensitive determination of phenyl urea herbicides diuron and fenuron

Mani

Devasenathipathy

Chen

et al. 2015

Ionics

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We have described the fabrication of highperformance amperometric sensors derived from graphene oxide-multiwalled carbon nanotube (GO-MWCNT) composite for the sensitive determination of diuron and fenuron. GO-MWCNT composite was prepared by simple solution-based approach, and its formation was confirmed by scanning electron microscopy, transmission electron microscopy and UVvisible spectroscopy methods. GO-MWCNT film-modified glassy carbon electrode exhibited excellent electrocatalytic performance in the oxidation of diuron and fenuron in terms of less overpotential and highly enhanced peak currents. GOMWCNTs have presented significantly improved electrocatalytic performance than dimethylformamide-dispersed MWCN Ts. GO-MWCNT-based amperometric sensor has been fabricated which detects diuron in wide linear range between 9 μM and 0.38 mM with high sensitivity of 0.645 μA μM −1 cm −2 . The amperometric sensor also detects fenuron in broad linear range between 0.9 and 47 μM with sensitivity of 1.20 μA μM −1 cm −2 . Moreover, the sensor offers appreciable repeatability, reproducibility, and stability results. Practical feasibility of the prepared amperometric sensor has been assessed in various water samples collected from agricultural areas.

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Section: Introductionmentioning

confidence: 99%

High-performance electrochemical amperometric sensors for the sensitive determination of phenyl urea herbicides diuron and fenuron

Mani

Devasenathipathy

Chen

et al. 2015

Ionics

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“…However, some studies used only SPE without liquid-liquid partitioning because sample extract was diluted during the sample preparation so that the SPE was capable of cleaning up the extract [18][19] . In this study the introduction of saline water-acetonitrile partitioning resulted in good recovery and higher sensitivities.…”

Section: Resultsmentioning

confidence: 99%

Development and Validation of Analytical Methods for Picoxystrobin Determination in Agricultural Products by GC-ECD and GC-MS

Ah¹,

Lee²,

Park³

et al. 2012

Journal of Food Hygiene and Safety

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-A simple and sensitive analytical method was developed using gas chromatography with electron capture detector (GC-ECD) and gas chromatography-mass spectrometry (GC-MS) for determination of Picoxystrobin in agricultural products (apple, hulled rice, mushroom, pepper, soybean, and mandarin). Picoxystrobin residues were extracted with acetonitrile, partitioned with saline water, and then they were cleaned up on a florisil solid-phase extraction (SPE) cartridge to obtain an extract suitable for analysis by GC-ECD and GC-MS. The method was validated using 6 agricultural product samples spiked with Picoxystrobin at different concentration levels (0.02, 0.05 and 0.5 mg/L). Average recoveries of Picoxystrobin (using each concentration three replicates) ranged 64.0~98.3% with relative standard deviations less than 10%, calibration solutions concentration in the range 0.1~5 mg/L, and limit of detection (LOD) and limit of quantification (LOQ) were 0.005 and 0.02 mg/L, respectively. The result showed that the developed analytical method is suitable for Picoxystrobin determination in agricultural products.

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“…75.3-104.3 (1.5-9.6) (Mou et al, 2008) Isoproturon Cereal grains and pasta Solvent Extraction. 15 g of sample with 4 mL of water and 30 mL acetone were placed in a centrifuged bottle homogenized using an ultra turrax for 30 s at 13500 rpm.…”

Section: -99mentioning

confidence: 99%

Critical Revision and Development Perspectives of Herbicide Residues Analysis in Agro Ecosystems

Cesio¹,

Niell²,

Pareja³

et al. 2011

Herbicides and Environment

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Simultaneous determination of 15 phenylurea herbicides in rice and corn using HPLC with fluorescence detection combined with UV decomposition and post-column derivatization

Cited by 47 publications

References 20 publications

High-performance electrochemical amperometric sensors for the sensitive determination of phenyl urea herbicides diuron and fenuron

High-performance electrochemical amperometric sensors for the sensitive determination of phenyl urea herbicides diuron and fenuron

Development and Validation of Analytical Methods for Picoxystrobin Determination in Agricultural Products by GC-ECD and GC-MS

Critical Revision and Development Perspectives of Herbicide Residues Analysis in Agro Ecosystems

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