Ethylmercury chloride

Figure 2.8 Detection of alkylmercury compounds using flameless atomic absorption detector. Conditions column, Corasil I, 50 cm x 2.1 mm i.d. eluent, n-hexane flow rate, 0.5 ml min-1 detection, flameless atomic absorption spectrometer. Peaks 1, benzene, 2, ethylmercury chloride, and 3, methylmer-cury chloride.

The exploitation of atomic-absorption spectrophotometry for monitoring HPLC column effluents has been recently examined by Funasaka et al. [46]. An eluent-vaporizing system was designed which introduced the effluent into the atomic-absorption unit. The limit of detection of compounds such as ethylmercury chloride was ca. 10 ng compared to 30 jug for a UV detector at 210 nm. The extreme selectivity of atomic absorption could make this technique of great value for the analysis of trace amounts of organometallic compounds and metal chelates. 

Samples of atmospheric mercury were obtained by pre-concentration of mercury on columns of graphitised carbon black (Carbotrap). The columns, at ambient temperature, retained mercury vapour and alkylmercury compounds (Bloom and Fitzgerald, 1988). Methylmercury chloride, ethylmercury chloride and dimethylmercury were held on the column at temperatures as high as 29°C and air flow rates as high as 790cm3min 1. At high flow rates and high temperature,... 

Chiba et al. [749] used atmospheric pressure helium microwave induced plasma emission spectrometry with the cold vapour generation technique combined with gas chromatography for the determination of methylmercuiy chloride, ethylmercury chloride and dimethylmercury in sea water following a 500-fold preconcentration using a benzene- cysteine extraction technique. 

SYNS CERESAN EMC ETHYLMERCURIC CHLORIDE ETHYLMERCURY CHLORIDE GANOZAN GRANOSAN... 

N-(ETHYLMERCURI)-p-TOLUENESULPHONANIUDE see ExMESOO ETHYLMERCURY CHLORIDE see CHC500 ETHYLMERCURY PHOSPHATE see BJT250 ETHYLMERCURY p-TOLUENESULFANILIDE see EME500... 

Mercury adsorbed from mercuric chloride and 2-methoxy-ethylmercury chloride (Aretan) solutions by three contrasting soils showed a dependence on soil-solution ratio and initial mercury (Elg) concentration in soil solution. Changing the soil solution ratio from 1 10 to 1 100 but keeping the initial concentration constant resulted in an increase in initial concentration but, on the other hand, resulted in decrease in Hg adsorption. Upon manipulation of the pH of the surface soils, adsorption of mercuric... 

Owing to its lower volatility, ethylmercury phosphate—(CjHjHg)3PO — is less hazardous than ethylmercury chloride. The compound is a white, crystalline substance, readily soluble in water it is therefore mainly used as the active substance in wet seed dressings. 

Their synthesis begins with hexachlorocyclopentadiene reacted with maleic acid. The adduct obtained is treated with ammonia, and the resulting imide is mixed in a solvent with methyl- or ethylmercury chloride ... 

Aminopropane, diazomethane, dimethylamine, 1,1-dimethylhydrazine, ethyl-amine, ethyldimethylamine, ethylene imine, ethylmercury chloride, formaldehyde, carbon disulfide, methanethiol, methylamine, methyl isocyanate, oxalic acid dinitrile, phosgene. 

Fig. 2 Chromatogram of a standard mixture after complexation with sodium diethyldithiocarbamate. Composition of the standard mercury dichloride, methylmercury chloride, ethylmercury chloride, methoxyethylmercury chloride, ethoxyethylmercury chloride, phenylmercury chloride, and tolymercury chloride.

Fig. 1. Reaction products of some mercurials with the SH-group of a protein. The reagents a re m e rcu -ric salts (giving product a), 4-chloromercuribenzo-ate lb), 4-chloromercuriphenylsulfonic acid (c), phenylmercury chloride (

Ethylaluminum dichloride-sodium chloride in dry xylene added below 50° to HgGIg in the same solvent, stirred 30 min., stored 12 hrs. at room temp., then water added slowly with cooling ethylmercury chloride. Y 91%. A. Swirska et al., Przemyst Ghem. 39, 371 (1960). 

To establish the optimal furnace temperature Bye and Paus injected aliquots of a benzene solution containing a constant amount of methylmercury and ethylmercury chloride into the gas chromatograph at different Variac outputs. The temperatures of the injection port and column were not varied. The results (Figure 17) show that the signals were almost independent of the furnace power consumption above 13W. To ensure complete cracking, 23W was chosen as the working power, giving a furnace temperature of about 620°C. 

Bye and Paus detected methylmercury (not ethyl- or phenyl-mercury) in a fish sample. Typical examples of the peaks obtained are shown in Figures 18 and 19. The calibration curves showed linear ranges up to lOppm Hg for methylmercury and ethylmercury chlorides in mixtures. From these graphs, the fish samples were found to contain 2.2ppm of mercury as methylmercury. 

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