Determination of the pesticide carbaryl by chemical deoxygenation micellar-stabilized room temperature phosphorescence

Wei, Yansheng; Weijun, Jin; Zhu, Rohua; Liu, Changsong; Zhang, Sushe

doi:10.1016/0039-9140(94)e0083-4

Cited by 16 publications

(6 citation statements)

References 8 publications

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“…Since a large number of pesticides displayed relatively strong phosphorescence, several RTP methods have been applied to the environmental analysis of pesticides [99][100][101][102][103][104][105][106]. Segura et al [99] optimized a ME-RTP method in a dichloromethane/1-pentanol/SDS microemulsion to determine the insecticide carbaryl in real soil samples.…”

Section: Fenvaleratementioning

confidence: 99%

“…Segura et al [99] optimized a ME-RTP method in a dichloromethane/1-pentanol/SDS microemulsion to determine the insecticide carbaryl in real soil samples. Carbaryl was also determined by the chemical deoxygenation MS-RTP method [100], and by the so-called HAI (heavy-atom induced)-RTP methodology [101]. In the later technique, several instrumental and experimental variables were optimized, yielding a LOD value of 2.8 ng mL -1 , and a RSD value of 2.1 % at the 150 ng mL -1 level.…”

Section: Fenvaleratementioning

confidence: 99%

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Luminescence methods for study and determination of pollutants in the environment

Vega-Morales

Montesdeoca-Esponda

Rodríguez

et al. 2010

Maced. J. Chem. Chem. Eng.

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The analytical performances and applications of various luminescence spectrometric methods to the study and determination of pollutants present at low levels in the environment are reviewed for the last two decades (1990 – 2010). The first part concerns luminescence stationary systems, including fluorescence, photochemically-induced fluorescence, phosphorescence and related luminescence methods. In the second part, the combination of these luminescence methods with flow techniques such as high performance liquid chromatography (HPLC), capillary electrophoresis (CE) and flow injection analysis (FIA) for the detection and determination of environmental pollutants is investigated. A part of the review is also devoted to the usefulness of organized supramolecular systems, such as micellar media, cyclodextrins and calixarenes, for improving the efficiency of luminescence methods.

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Section: Fenvaleratementioning

confidence: 99%

Section: Fenvaleratementioning

confidence: 99%

Luminescence methods for study and determination of pollutants in the environment

Vega-Morales

Montesdeoca-Esponda

Rodríguez

et al. 2010

Maced. J. Chem. Chem. Eng.

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“…Selenium is an interesting element in natural systems because of its dual role as both an essential nutrient at low concentrations and a toxic substance at higher levels. The concentration range between Se as an essential element and a toxic one is moreover, rather narrow . However, the safety factor of selenium, or the amount required versus toxic levels, is wider than vitamins A and D and copper for sheep.…”

mentioning

confidence: 99%

Microwave Digestion of Environmental and Natural Waters for Selenium Speciation

2001

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“…Equilibrium is achieved in a few minutes. The MS-RTP method, using sodium sulfite as oxygen scavenger, has been described to determine pesticides (15,16). Napropamide [N, N-diethyl-2-(1-naphthalenyloxy) propanamide] is a residual herbicide appertaining to the amide series (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…Equilibrium is achieved in a few minutes. The MS−RTP method, using sodium sulfite as oxygen scavenger, has been described to determine pesticides ( , ).…”

Section: Introductionmentioning

confidence: 99%

Determination of the Pesticide Napropamide in Soil, Pepper, and Tomato by Micelle-Stabilized Room-Temperature Phosphorescence

Pulgarı́n

Bermejo

2002

J. Agric. Food Chem.

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A selective and sensitive method for determining napropamide by room-temperature phosphorescence in SDS micelles is proposed and applied to the determination of this substance in a technical formulation and in spiked soil, pepper, and tomato samples. The use of phosphorescence enhancers such as sodium dodecyl sulfate (micellar agent), thallium (I) nitrate (external heavy atom), and sodium sulfite (deoxygenation agent) was studied and optimized to obtain maximum sensitivity. The determination was performed in 66 mM SDS, 30 mM thallium (I) nitrate, and 8 mM sodium sulfite. Taking into account both maximum phosphorescence intensity and the time required to reach that, a pH value of 7.2 was selected. After the samples were left standing at room temperature for 10 min, the phosphorescence was totally developed. The intensity was then measured at lambda(ex) = 282 nm and lambda(em) = 528 nm. The calibration graph was linear for 50-600 ng mL(-1) napropamide. The detection limit, according to the error propagation theory, was 16 ng mL(-1). The method has been demonstrated for the analysis of soils, peppers, and tomatoes, but, because of matrix interference, the method of standard additions was applied to determine napropamide in the vegetable samples. Recoveries from all these matrixes of added napropamide were near 100%.

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Determination of the pesticide carbaryl by chemical deoxygenation micellar-stabilized room temperature phosphorescence

Cited by 16 publications

References 8 publications

Luminescence methods for study and determination of pollutants in the environment

Luminescence methods for study and determination of pollutants in the environment

Microwave Digestion of Environmental and Natural Waters for Selenium Speciation

Determination of the Pesticide Napropamide in Soil, Pepper, and Tomato by Micelle-Stabilized Room-Temperature Phosphorescence

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