Results 181 to 190 of about 15,964 (226)
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Preparation and structural studies of methylmercury compounds containing amino-deprotonated adenine
Inorganic Chemistry, 1986[(CH 3 Hg) 3 (Ad-2H)]•1/2 H 2 O cristallise dans le systeme monoclinique, groupe d'espace C2/c et sa structure est affinee jusqu'a R=0,050. [(CH 3 Hg) 4 (Ad-2H)] NO 3 cristallise dans le systeme monoclinique, groupe d'espace P2 1 /c avec R=0 ...
Jean Pierre Charland, Andre L. Beauchamp
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ChemInform Abstract: MERCURY‐PROTON SPIN‐SPIN COUPLING CONSTANTS OF SOME METHYLMERCURY COMPOUNDS
Chemischer Informationsdienst, 1973AbstractDie 199Hg‐1H‐Spin‐Spin‐Kopplungskonstanten zahlreicher Methylquecksilbersalze (I) werden bestimmt.
L. F. SYTSMA, R. J. KLINE
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Regeneration in two freshwater planarian species exposed to methylmercury compounds
Russian Journal of Developmental Biology, 2008The regeneration rate was studied by the morphometric method in planarians Polycelis tenuis and Dugesia lugubris after different periods of exposure on food substrates with high (0.30-0.50 mg/kg wet weight) and low (0.02-0.07 mg/kg) concentration of methylmercury compounds.
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Estimating carbon—mercury bond ionisation constants from PMR spectra of methylmercury compounds
Journal of Organometallic Chemistry, 1974Abstract Analysis of J ( 199 HgCH 3 ) spin coupling constants in PMR spectra of CH 3 HgX (where X is a carbanion) shows that the affinity of various X groups for the methylmercury cation is linearly dependent on the acidity of the respective CH-acids XH.
K.P. Butin, I.P. Beletskaya, O.A. Reutov
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1H-NMR study of the removal of methylmercury from intact erythrocytes by sulfhydryl compounds
Journal of Inorganic Biochemistry, 1986The effectiveness of penicillamine, N-acetylpenicillamine, meso-2,3-dimercaptosuccinic acid, 2,3-dimercaptopropanesulfonic acid, and dithioerythritol for removing methylmercury (CH3Hg(II) from intact human erythrocytes has been studied by 1H-nuclear magnetic resonance spectroscopy.
D L, Rabenstein, A P, Arnold, R D, Guy
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ChemInform, 1987
AbstractThe reactions of MeHgX (X: ‐OH, ‐NO3, ‐ClO4) with adenine in H2O/EtOH mixtures in different stoichiometric ratios give the compounds (I)‐(III) in a yield of about 60%.
J.‐P. CHARLAND, A. L. BEAUCHAMP
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AbstractThe reactions of MeHgX (X: ‐OH, ‐NO3, ‐ClO4) with adenine in H2O/EtOH mixtures in different stoichiometric ratios give the compounds (I)‐(III) in a yield of about 60%.
J.‐P. CHARLAND, A. L. BEAUCHAMP
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Applied Organometallic Chemistry, 1994
AbstractThis review describes determinations of mercury compounds under three categories: total mercury; separate determinations of inorganic mercury(II) and organomercury compounds by selective reduction; and speciation of inorganic mercury(II), monomethylmercury cation, and dimethylmercury. Topics described for each category include sample treatment,
Richard Puk, James H. Weber
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AbstractThis review describes determinations of mercury compounds under three categories: total mercury; separate determinations of inorganic mercury(II) and organomercury compounds by selective reduction; and speciation of inorganic mercury(II), monomethylmercury cation, and dimethylmercury. Topics described for each category include sample treatment,
Richard Puk, James H. Weber
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Journal of Agricultural and Food Chemistry, 1973
Beans, cabbage, carrots, millet, onions, potatoes, and tomatoes were grown on silt loam, gravelly loam, and muck soils treated with 1 and 10 ppm of mercuric chloride, methylmercury dicyandiamide (PAN), or phenylmercuric acetate. Appreciable concentrations of methylmercury were present only in PAN-treated soils and in beans, millet and tomatoes grown on
C A, Bache +5 more
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Beans, cabbage, carrots, millet, onions, potatoes, and tomatoes were grown on silt loam, gravelly loam, and muck soils treated with 1 and 10 ppm of mercuric chloride, methylmercury dicyandiamide (PAN), or phenylmercuric acetate. Appreciable concentrations of methylmercury were present only in PAN-treated soils and in beans, millet and tomatoes grown on
C A, Bache +5 more
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Environmental Science & Technology, 1997
Humic and fulvic acids from lakes in Ontario, Canada, have been isolated and been examined for their ability to bind methylmercury(II). Equilibrium dialysis has been applied to differentiate between bound and unbound fractions of MeHg(II). Losses of methylmercury(II) from solutions containing 0.5−100 ng/L MeHg(II) and 10 mg/L humic substances (HS) are ...
Holger Hintelmann +2 more
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Humic and fulvic acids from lakes in Ontario, Canada, have been isolated and been examined for their ability to bind methylmercury(II). Equilibrium dialysis has been applied to differentiate between bound and unbound fractions of MeHg(II). Losses of methylmercury(II) from solutions containing 0.5−100 ng/L MeHg(II) and 10 mg/L humic substances (HS) are ...
Holger Hintelmann +2 more
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The Analyst, 1992
Two novel and convenient methods for obtaining volatile mercury and methylmercury species for analysis that allows non-volatile analyte solutions to be identified by element-specific and species-selective techniques are described. Non-volatile aqueous solutions of mercury(II) and/or methylmercury(II) compounds are converted into volatile forms ...
Peter J. Craig +4 more
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Two novel and convenient methods for obtaining volatile mercury and methylmercury species for analysis that allows non-volatile analyte solutions to be identified by element-specific and species-selective techniques are described. Non-volatile aqueous solutions of mercury(II) and/or methylmercury(II) compounds are converted into volatile forms ...
Peter J. Craig +4 more
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