Photodegradation and Flow-Injection Determination of Dithiocarbamate Fungicides in Natural Water with Chemiluminescence Detection

Waseem, Amir; Yaqoob, Mohammad; Nabi, Abdul

doi:10.2116/analsci.25.395

Cited by 32 publications

(23 citation statements)

References 29 publications

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“…The results are given in Table 2. The results obtained by the proposed method were matched with the reported FI-CL 18 and HPLC 25 methods with % recovery in the range of 95 ± 3 -106 ± 2% for thiram and 95 ± 5 -105 ± 3% for aminocarb, respectively. They were in good agreement with these reported methods.…”

Section: Validation Of the Proposed Methodssupporting

confidence: 78%

Determination of Thiram and Aminocarb Pesticides in Natural Water Samples Using Flow Injection with Tris(2,2′-bipyridyl)-ruthenium(II)-diperiodatoargentate(III) Chemiluminescence Detection

Asghar¹,

Yaqoob²,

Haque

et al. 2013

ANAL. SCI.

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A simple and sensitive flow-injection (FI) method is reported for the determination of thiram and aminocarb pesticides in natural water samples based on the strong enhancing effects of these pesticides on the tris(2,2′-bipyridyl)ruthenium(II)-diperiodatoargentate(III) (Ru(bipy)3 2+ -DPA) chemiluminescence (CL) system. Under the optimum experimental conditions, the CL intensity was linear over the range of 1.0 -1000 and 1.0 -10000 ng mL -1 (R 2 = 0.9998 (n = 7) and 0.9994 (n = 11)) for thiram and aminocarb, respectively, with relative standard deviations (RSDs; n = 3) in the range 1.0 -2.6%. The limits of detection (S/N = 3) were 0.1 ng mL -1 for both pesticides with injection throughputs of 150 h -1 . The key chemical and physical variables (reagent concentrations, flow rates, sample volume, PMT voltage) were optimized and potential interferences investigated. The method was successfully applied to natural water samples and the results obtained were not significantly different (95% confidence interval) from results obtained by the previously reported FI-CL and HPLC methods. Thiram could be determined in the presence of aminocarb using Triton X-100. The possible CL reaction mechanism is also discussed briefly.

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Section: Validation Of the Proposed Methodssupporting

confidence: 78%

Determination of Thiram and Aminocarb Pesticides in Natural Water Samples Using Flow Injection with Tris(2,2′-bipyridyl)-ruthenium(II)-diperiodatoargentate(III) Chemiluminescence Detection

Asghar¹,

Yaqoob²,

Haque

et al. 2013

ANAL. SCI.

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“…28 This study reports on a flow injection chemiluminescence (FI-CL) system for the determination of retinol and tocopherol, based on their enhancement effect on the KMnO4-HCHO CL reaction in an acidic medium. The oxidation of tocopherol by KMnO4 possibly results in intermediate products similar to the phenolics/antioxidants, tocoquinones/hydroquinones, which have been reported in the literature 18,[21][22][23] to generate CL upon a reaction with acidic potassium permanganate. A similar behavior is shown by vitamin A; however, the exact CL enhancement mechanisms of these vitamins are unclear.…”

Section: Introductionmentioning

confidence: 58%

“…An analytical advantage of CL includes high sensitivity, very low limits of detection and a wide linear range. [18][19][20][21] The CL reactions of acidic potassium permanganate have been extensively studied for the determination of reductants and some enhancers. 18,19 Among them, low-molecular weight aldehydes increase the response from many analytes.…”

Section: Introductionmentioning

confidence: 99%

Flow-Injection Determination of Retinol and Tocopherol in Pharmaceuticals with Acidic Potassium Permanganate Chemiluminescence

et al. 2009

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“…Photolysis can be due to absorption of UV or due to oxygen and hydrogen radicals. In this method FIA is used in combination with thermal lens spectrometry [105]. Similar technique has also been employed for detection of dithiocarbamate fungicides [101] in water samples.…”

Section: Use Of Biosensorsmentioning

confidence: 99%

Developments in Analytical Methods for Detection of Pesticides in Environmental Samples

Bhadekar¹,

Pote²,

Tale³

et al. 2011

AJAC

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The present review gives a survey of all the published methods along with their advantages and limitations. Traditional methods like thin layer chromatography, gas chromatography, liquid chromatography etc are still in use for this purpose. But some recent bio-analytical methods such as immunosensors, cell based sensors etc. have also gained equal importance. This article also overviews various electro-analytical methods and their applications as detection devices when combined with FIA and biosensors. Lastly nanoparticle based biosensors have also been discussed. The review concludes with futuristic approach to reduce the risks caused by pesticides. This scrutiny should provide concise evaluation of different techniques employed for pesticide detection in environmental samples.

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Photodegradation and Flow-Injection Determination of Dithiocarbamate Fungicides in Natural Water with Chemiluminescence Detection

Abstract: . The method was successfully applied to determine these dithiocarbamate fungicides in spiked natural water samples.

Cited by 32 publications

References 29 publications

Determination of Thiram and Aminocarb Pesticides in Natural Water Samples Using Flow Injection with Tris(2,2′-bipyridyl)-ruthenium(II)-diperiodatoargentate(III) Chemiluminescence Detection

Determination of Thiram and Aminocarb Pesticides in Natural Water Samples Using Flow Injection with Tris(2,2′-bipyridyl)-ruthenium(II)-diperiodatoargentate(III) Chemiluminescence Detection

Flow-Injection Determination of Retinol and Tocopherol in Pharmaceuticals with Acidic Potassium Permanganate Chemiluminescence

Developments in Analytical Methods for Detection of Pesticides in Environmental Samples

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