The determination of arsenic content in naphtha by GFAAS was studied with THF as solvent,and nickel nitrate as matrix modifier.

• 试样用四氢呋喃(THF)有机溶剂稀释,以硝酸镍为基体改进剂,研究采用石墨炉原子吸收法直接进样测定石脑油中的砷量。