ISO 10540-3:2002 动物和蔬菜脂肪和油-磷含量测定-第3部分：ICP光学发散光谱法

标准编号：ISO 10540-3:2002

中文名称：动物和蔬菜脂肪和油-磷含量测定-第3部分：ICP光学发散光谱法

英文名称：Animal and vegetable fats and oils — Determination of phosphorus content — Part 3: Method using inductively coupled plasma (ICP) optical emission spectroscopy

发布日期：2002-12

标准范围

ISO 10540-3:2002规定了油中磷的定量方法，该方法仅限于磷含量低、无任何浑浊或可见沉积物的油。根据使用的稀释溶剂，可以分析大多数类型的植物油（原油、脱胶油、精炼油、漂白油、脱臭油和硬化油）以及几乎所有类型的卵磷脂和磷脂。该方法仅适用于磷以溶解形式存在的情况。当它以细颗粒（如白土）存在时，ICP-OES分析由于雾化和雾化问题导致回收率低。对这些样品来说，唯一合适的非灰化直接法是石墨炉原子吸收光谱法。

ISO 10540-3:2002 specifies a method for the quantification of phosphorus in oil, which is limited to oils with low phosphorus content, without any turbidity or visible sediment.Depending on the dilution solvent used, most types of vegetable oils can be analysed (crude, degummed, refined, bleached, deodorized and hardened oils) and nearly all types of lecithins and phosphatides. This method is only suitable when phosphorus is present in a solubilized form. When it is present as fine particles, such as bleaching earth, ICP-OES analysis results in poor recovery as a result of nebulization and atomization problems. The only suitable non-ashing direct method for these samples is graphite furnace atomic absorption spectrometry.

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