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石墨炉原子吸收分光光度法(GFAAS)测定砷较为困难,直接测定有机材料中砷的文献更为少见。Elson等曾试图用GFAAS直接测定MIBK溶解的精制油,最终认为即使加入Ni~(2+)也无法进行测定。Fabec用Ni~(3+)作基体改进剂,由GF-AAS直接测定了四氢呋喃溶解的页岩油中的砷。由于该法必须将样品稀释100倍以上,其检出限量仅为0.2mg/kg,不能适合食品卫生标准对植物油中砷限量应≤0.1mg/kg的要求。本文比较了管壁法和平台法,以及Pd~(2+)和
Graphite furnace atomic absorption spectrophotometry (GFAAS) determination of arsenic is more difficult, the direct determination of arsenic in organic materials is more rare. Elson et al. Tried to use GFAAS to directly measure the MIBK dissolved refined oil, and finally concluded that the determination could not be made even if Ni 2+ was added. Fabec Ni (3+) as a matrix modifier, GF-AAS direct determination of tetrahydrofuran dissolved in shale oil arsenic. As the law must be diluted more than 100 times the sample, the detection limit is only 0.2mg / kg, can not meet the food hygiene standards for arsenic in vegetable oils should limit ≤ 0.1mg / kg requirements. This article compares pipe wall and platform methods, as well as Pd ~ (2+) and