liquid and gas) of the other component (methanol, hexane, benzene, ethyl ether
, and methyl acetate) in thermodynamic equilibrium, are also split into 100 points.
The most active compounds, halfordinol (12) and ethyl ether
aegeline (13), were studied for their dose dependency using the concentrations 12.
The methanol was removed under reduced pressure and the residue was extracted with ethyl ether
It then reacts with ethanol to form an intermediate compound, which splits off water and another proton to become furfuryl ethyl ether
The monophenol 2,4-bis-(dimethylbenzyl)-6-t-butylphenol was prepared using a Friedel-Crafts alkylation reaction, in the same way as were the other phenols, except that 15 g of 2,4-bis-(dimethylbenzyl)phenol was used as the starting material for synthesis, and the phenol product was purified by normal-phase HPLC using a running solvent of hexane/1% ethyl ether
For the removal of neutral, acidic, and basic compounds in the ethyl ether
extract of serum, ion-exchange chromatography has been widely used (4-11).
Wood and bark extraction: Wood (2820 g) and bark (1070 g) samples were dried, ground separately and then extracted with ethanol to give 48 g and 22 g of the corresponding oily extracts, which were suspended in water and partitioned successively with hexane and ethyl ether
Crude fermentation broths were filtered and blended for extraction with ethyl ether
Its broad solvency and slow evaporation rate make it a suitable replacement for ethylene glycol ethyl ether
acetate (EEA), according to the company.
For the ethyl ether
extraction, we added 5 g NaCl and 1 mL 6 N HCl to 100 g shellfish homogenate as prepared above; the substances were mixed and then boiled for 5 min.
The chemicals - seized in drug lab raids and illegally dumped for several years starting in the late 1970s - include such hazardous substances as sodium cyanide, ethyl ether
, benzene and toluene.
cocoamidopropyl hydroxysultaine (30-40%), PEG-6000 distearate (5-10%), panthenol (1-5%), lauramide DEA (1-5%), panthenyl ethyl ether