标准编号：ISO/TS 21033:2011
中文名称：动植物油脂 用电感耦合等离子体光发射光谱仪（ICP-OES）测定微量元素
英文名称：Animal and vegetable fats and oils — Determination of trace elements by inductively coupled plasma optical emission spectroscopy (ICP-OES)
发布日期：2011-04
标准范围
This Technical Specification specifies an inductively coupled plasma optical emission spectroscopic (ICPOES)method for the determination of trace element content in oils. Depending on the dilution solvent used,most types of vegetable oils can be analysed (crude, degummed, refined, bleached, deodorized and hardenedoils) and nearly all types of lecithins and phosphatides.This procedure is only suitable when the elements are present in a solubilized form. Fine particles, such asbleaching earth, metal particles and rust, can result in poor recovery of the trace elements present asnebulization and atomization problems affect the ICP-OES analysis.NOTE The only suitable non-ashing direct method for samples containing fine particles is graphite furnace atomicabsorption spectrometry.
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