HAc-MIBK作稀释剂GFAAS法直接测定食用植物油中砷

Direct Determination of Arsenic in Edible Vegetable Oil by Graphite Furnace Atomic Absorption Spectrophotometry

采用冰乙酸 -甲基异丁基甲酮 (HAc- MIBK)混合剂稀释食用植物油样品 ,在氯化钯 -硝酸镁混合基体改进剂存在的条件下 ,用石墨炉原子吸收法直接测定食用植物油中砷。方法简便、快速、可靠 ,具有较好的精密度和准确度。

The sample was diluted by a HAc\|MIBK mixture solvent.In the presence of a mixed matrix modifier PdCl\-2\|Mg(NO\-3)\-2 the sample was directly determined by GFAAS.The method was proved to be simple,rapid and convenient,with high accuracy and precision.