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Anthropogenic organic compounds in ground water and finished water of community water systems in the northern Tampa Bay area, Florida, 2002-04
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Year: 2007 Publisher: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey,

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Ecotoxicological aspects of dithiocarbamates.
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Year: 1986 Publisher: The Hague Rijkswaterstaat

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Water-quality changes and organic-carbon characterization during recharge with recycled water at a research basin in Montebello Forebay, Los Angeles County, California, 1991-1996
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Year: 2003 Publisher: Sacramento, CA : [Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey ; [U.S. Geological Survey, Information Services,distributor],

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Occurrence of emerging contaminants in water and bed material in the Missouri River, North Dakota, 2007
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Year: 2009 Publisher: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey,

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Dissertation
Utilisation de pesticides en aquaculture en eau douce dans le Delta du Mekong, au Vietnam, et impacts sur l'environnement et la sécurité alimentaire des aliments = : Use of pesticides in fresh water aquaculture in the Mekong Delta, Vietnam, and impacts on environment and food safety
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ISBN: 9782875431295 Year: 2018 Publisher: Liège : Presses de la Faculté de Médecine Vétérinaire de l'Université de Liège,

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Mise au point d'une méthode de spéciation de l'arsenic par chromatographie liquide à haute performance couplée à la fluorescence atomique

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A technique was developed for the determination if arsenite (AsIII), arsenate (AsV), monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) in human urine by high performance liquid chromatography coupled with hydride generation and atomic fluorescence detection. The separation efficiency by anion exchange column (PRP-X100) was studied. Effects such as argon and hydrogen flow rates, hydrochloric acid and sodium borohydride concentrations were assessed by determination of the signal to base ratio. Arsenobetaïne (AB), arsenocholine (AC) and trimethylarsine (TMA) were detected only after oxidation. This method displays a large range of linearity and 0.3 ng, 0.4 ng, 0.4 ng and 0.8 ng are the detection limits for AsIII, MMA, DMA, AsV respectively. A comparison between atomic fluorescence spectroscopy and atomic absorbance spectroscopy was made by analyzing sample of two rounds of an external quality testing program. Nous avons développé une technique permettant la détermination dans l’eau et dans l’urine de l’arsénite (AsIII), de l’arsénate (AsV), de l’acide monométhylarsonique (M.M.A.) et de l’acide diméthylarsinique (D.M.A.), par chromatographie liquide à haute performance couplée à un générateur d’hydrure et à un détecteur de fluorescence atomique. Nous avons étudié l’efficacité de la séparation des diverses formes de l’élément sur une colonne échangeuse d’anions (PRP X-100). Nous avons optimisé les paramètres de détection, tels que les débits d’hydrogène et d’argon, les concentrations en acide chlorhydrique et en borohydrure sodique, par calcul du rapport signal/bruit. L’arsénobétaïne (AB) , l’arsénocholine (AC) et l’oxude de triméthylarsine ne sont détectables que s’ils ont été préalablement oxydés. Cette méthode possède une linéarité de réponse sur plusieurs ordres de grandeurs et les limites de détection sont respectivement pour AsIII, MMA, DA, AsV de 0.3 ng, 0.4 ng, 0.4 ng et 0.8 ng. Nous avons comparé, pour des échantillons de routine, les résultats de dosages par fluorescence atomique et absorption atomique.


Book
Organic compounds assessed in Chattahoochee River water used for public supply near Atlanta, Georgia, 2004-05
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Year: 2011 Publisher: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey,

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Reconnaissance of organic wastewater compounds at a concentrated swine feeding operation in the North Carolina Coastal Plain, 2008
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Year: 2009 Publisher: Reston, Va. : U.S. Geological Survey,

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Wet electrochemical detection of organic impurities
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ISBN: 1616684917 Year: 2010 Publisher: New York, New York : Nova Science Publishers,

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Man-made organic compounds in source water of nine community water systems that withdraw from streams, 2002-05
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Year: 2008 Publisher: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey,

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