Chemiluminescence determination of carbofuran at trace levels in lettuce and waters by flow-injection analysis

Huertas-Pérez, José F.; Gámiz‐Gracia, Laura; Garcı́a-Campaña, Ana M.; González‐Casado, Antonio; Vidal, José Luis Martı́nez

doi:10.1016/j.talanta.2004.08.058

Cited by 31 publications

(7 citation statements)

References 27 publications

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“…24,25 Chemiluminescence (CL) with a flow-injection (FI) analysis to detect the trace CAF in lettuce and waters was also studied. 26 In this study, a heated microelectrode chip (HMEC) made by a photolithographic method has been fabricated, and ) bpy ( u R /CAF system increased with the increasing of electrode temperature and the detection limits for CAF were better at higher electrode temperature than that at lower electrode temperature. Compared with the early proposed heated electrodes, the HMEC was durable, which can be handled and used easily, and since the HMEC can be mass produced by the photolithographic method, so the difference between the electrodes was little and the reproducibility was well.…”

Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Ye¹,

Chen²,

Qiu³

et al. 2011

Chin. J. Chem.

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An electrically heated microelectrode chip (HMEC) was designed and the 2 3 Ru(bpy)+ /carbofuran electrochemiluminescence (ECL) systems were applied to characterize the performance of the HMEC. The ECL intensities increase at elevated electrode temperature, and the detection limit at 60 ℃ (electrode surface temperature) was about 10 times lower than that at 30 ℃. The results indicate that new heated electrode can be handled easily and can be mass produced, the difference between the electrodes was little. The stability of the HMEC was good since the electrode surface can hardly be destroyed during detection and storage.

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Section: Introductionmentioning

confidence: 99%

Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Ye¹,

Chen²,

Qiu³

et al. 2011

Chin. J. Chem.

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“…Due to the high sensitivity of the technique, low detection limits can be reached with a wide range of linearity. In recent years, there have been proposed in the 4 literature a wide variety of flow-injection chemiluminescence (FI-CL) methods that allow rapid, selective and sensitive determination of pesticides such as diuron [19], paraquat [20], imazalil [21], thiram [22], asulam [23], diquat [24], carbofuran and promecarb [25,26 ], carbaryl [27] and pirimicarb [28] among others. However, to the authors' knowledge, none has been described the FI-CL method for the determination of Fenamiphos nematicide in the literature for any.…”

Section: Introductionmentioning

confidence: 99%

Sensitive determination of Fenamiphos in water samples by flow injection photoinduced chemiluminescence

Benito

Lloret

Torres-Cartas

2012

International Journal of Environmental Analytical Chemistry

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In this work, a sensitive flow injection chemiluminescence (FI-CL) method for the determination of nematicide Fenamiphos in a rapid and simple way is proposed.Fenamiphos is firstly photodegraded in basic medium. These photofragments react with Ce(IV) providing the chemiluminescence signal. To the authors' knowledge, no chemiluminescence method has been described in the literature for the determination of the nematicide Fenamiphos. All physical and chemical parameters in the flow injection chemiluminescence system were optimized in order to obtain the best sensitivity, selectivity and sample throughput. Before the injection of the sample in the FI-CL system, a preconcentration step with solid phase extraction C18 cartridges was performed. By applying SPE to 250 mL of standard (final volume 10 mL), the linear dynamic range was between 3.4 and 60 µg L -1 , and the detection limit was 1 µg L -1 .When SPE was applied to 500 mL of standard (final volume 10 mL), the detection limit was 0.5 µg L -1 . These detection limits are below the emission limit value established by the Spanish Regulations of the Hydraulic Public Domain for pesticides (50 µg L -1 ) and of the same order as the limit established for total pesticides (0.5 µg L -1 ) at EuropeanDirective on the quality of water for human consumption. The sample throughput was 126 hour -1 . Intraday and interday coefficients of variation were below 10% in all cases.No interference was registered in presence of usual concentrations of anions, cations and other organophosphorus pesticides. The method was successfully applied to the analysis of environmental water samples, obtaining recoveries between 96 and 107.5%.

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“…The limit of detection (3 s/K) is 2.84 × 10 −8 mol/L. Carbofuran is also determined by using a FI-CL method based on the reaction of luminol with KMnO 4 in alkaline medium by its enhancement effect (29). The CL intensity is linear for carbofuran concentration over the range 0.06-0.5 µg/ mL, with a limit of detection of 0.02 µg/mL, using a flow rate of 4.0 mL/channel.…”

Section: Introductionmentioning

confidence: 99%

Flow‐injection determination of carbaryl and carbofuran based on KMnO₄–Na₂SO₃ chemiluminescence detection

2007

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A flow-injection method is described for the determination of carbaryl and carbofuran. It was found that a strong chemiluminescence (CL) signal was generated when these pesticides were mixed with Na(2)SO(3) and KMnO(4) in acidic medium. Under the optimum experimental conditions, the enhanced CL intensity was linear, with the concentrations in the range 0.1-2.0 microg/mL (r(2) = 0.9996 and 0.9993, n = 6) with relative standard deviation (n = 4) in the range 1.0-2.3%. The limits of detection (3sigma blank) were 10 and 50 ng/mL, respectively, with a sample throughput of 180/h. The proposed method was applied to determine carbaryl and carbofuran in freshwaters with satisfactory results. Most metal and non-metal ions and some pesticides, such as carbophenothion and aldicarb, do not interfere with the determination. Dinoseb, diazinon and malathion calibration graphs (in the range 0.2-2.0 microg/mL, r(2) = 0.9966-0.9988, n = 6) were also established with relative standard deviations (n = 4) in the range 1.2-2.0% with limits of detection (3sigma blank) in the range 100-300 ng/mL.

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Chemiluminescence determination of carbofuran at trace levels in lettuce and waters by flow-injection analysis

Cited by 31 publications

References 27 publications

Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Sensitive determination of Fenamiphos in water samples by flow injection photoinduced chemiluminescence

Flow‐injection determination of carbaryl and carbofuran based on KMnO₄–Na₂SO₃ chemiluminescence detection

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Chemiluminescence determination of carbofuran at trace levels in lettuce and waters by flow-injection analysis

Cited by 31 publications

References 27 publications

Electrochemiluminescence Behavior of Ru(bpy)32+/Carbofuran System on an Electrically Heated Microelectrode Chip

Electrochemiluminescence Behavior of Ru(bpy)32+/Carbofuran System on an Electrically Heated Microelectrode Chip

Sensitive determination of Fenamiphos in water samples by flow injection photoinduced chemiluminescence

Flow‐injection determination of carbaryl and carbofuran based on KMnO4–Na2SO3 chemiluminescence detection

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Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Electrochemiluminescence Behavior of Ru(bpy)₃²⁺/Carbofuran System on an Electrically Heated Microelectrode Chip

Flow‐injection determination of carbaryl and carbofuran based on KMnO₄–Na₂SO₃ chemiluminescence detection