二甲基硒
二甲基硒结构式
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常用名 | 二甲基硒 | 英文名 | Dimethylselenide |
|---|---|---|---|---|
| CAS号 | 593-79-3 | 分子量 | 109.029 | |
| 密度 | 1.408 g/mL at 20 °C(lit.) | 沸点 | 49.8±9.0 °C at 760 mmHg | |
| 分子式 | C2H6Se | 熔点 | N/A | |
| MSDS | 美版 | 闪点 | -16.1±18.7 °C | |
| 符号 |
GHS06, GHS08, GHS09 |
信号词 | Danger |
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Quantification of methylated selenium, sulfur, and arsenic in the environment.
PLoS ONE 9(7) , e102906, (2014) Biomethylation and volatilization of trace elements may contribute to their redistribution in the environment. However, quantification of volatile, methylated species in the environment is complicated by a lack of straightforward and field-deployable air samp... |
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Gas chromatography with atomic emission detection for dimethylselenide and dimethyldiselenide determination in waters and plant materials using a purge-and-trap preconcentration system.
J. Chromatogr. A. 1095(1-2) , 138-44, (2005) Dimethylselenide (DMSe) and dimethyldiselenide (DMDSe) were determined in plant and water samples by capillary gas chromatography using microwave induced-plasma atomic emission spectrometry for detection. The analytes were leached from the solid samples into ... |
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Biotransformation of L-selenomethionine and selenite in rat gut contents.
Biol. Trace Elem. Res. 139(2) , 188-96, (2011) L-selenomethionine (SeMet) and sodium selenite are widely used selenium nutritional supplements with potential benefit in preventing cancer. However, supplementation is not without risks of toxicity if intake is too high. The aim of the present study was to i... |
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First experimental observation of the CH3Se radical.
ChemPhysChem 6(10) , 2032-5, (2005)
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Time-resolved study on the reactions of organic selenides with hydroxyl and oxide radicals, hydrated electrons, and H-atoms in aqueous solution, and DFT calculations of transients in comparison with sulfur analogues.
Phys. Chem. Chem. Phys. 12(25) , 6750-8, (2010) A complementary experimental and quantum chemical study has been undertaken on the reactivity, formation and properties of transients generated in the reaction of selected organic selenides with hydroxyl radicals, oxide radical ions, hydrated electrons and hy... |
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Capabilities of HPLC with APEX-Q nebulisation ICP-MS and ESI MS/MS to compare selenium uptake and speciation of non-malignant with different B cell lymphoma lines.
Anal. Bioanal. Chem 399(5) , 1789-97, (2011) The formation of intracellular dimethylselenide (DMSe) as a product of exposure of non-malignant (PBMCs) and lymphoma (RL and DHL-4) cell lines to methylseleninic acid (MSA) at clinical levels is suggested here for the first time. This was achieved by analysi... |
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Trace gas emissions from the marine biosphere.
Philos. Transact. A. Math. Phys. Eng. Sci. 365(1856) , 1697-704, (2007) A wide variety of trace gases (e.g. dimethyl sulphide, organohalogens, ammonia, non-methane and oxygenated hydrocarbons, volatile oxygenated organics and nitrous oxide) are formed in marine waters by biological and photochemical processes. This leads in many,... |
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Metabolism of L-selenomethionine and selenite by probiotic bacteria: in vitro and in vivo studies.
Biol. Trace Elem. Res. 144(1-3) , 1358-69, (2011) Since selenium supplements have been shown to undergo biotransformation in the gut, probiotic treatment in combination with selenium supplements may change selenium disposition. We investigated the metabolism of L-selenomethionine (SeMet) and selenite by prob... |
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Distribution and genetic diversity of bacterial thiopurine methyltransferases in soils emitting dimethyl selenide.
Biochimie 88(11) , 1573-81, (2006) Dimethyl selenide (DMSe) and dimethyl diselenide (DMDSe) emissions by soil samples spiked with selenite or (methyl)selenocysteine, with or without a supplement of nutrient broth and glucose were measured. DMSe was the main form of volatile Se produced, and wa... |
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Dimethylselenide as a probe for reactions of halogenated alkoxyl radicals in aqueous solution. Degradation of dichloro- and dibromomethane.
J. Phys. Chem. A 112(26) , 5908-16, (2008) Using pulse radiolysis and steady-state gamma-radiolysis techniques, it has been established that, in air-saturated aqueous solutions, peroxyl radicals CH 2HalOO (*) (Hal = halogen) derived from CH 2Cl 2 and CH 2Br 2 react with dimethyl selenide (Me 2Se), wit... |