| http://www.w3.org/ns/prov#value | - The organic solvent used in this invention may include alcohol such as methanol, ethanol, n-propanol, i-propanol, n-butanol, 2-butanol and isobutanol; ether such as tetrahydrofuran, dioxane, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol propyl ether
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