ISO 10540-3-2002 动植物脂肪和油.磷含量测定.第3部分:感应耦合等离子体光辐射分光光度测定法

标准号：ISO 10540-3-2002
中文标准名称：动植物脂肪和油.磷含量测定.第3部分:感应耦合等离子体光辐射分光光度测定法
英文标准名称：Animal and vegetable fats and oils - Determination of phosphorus content - Part 3: Method using inductively coupled plasma (ICP) optical emission spectroscopy
标准类型：X14
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X14
国际标准分类号：67.200.10
适用范围：This part of ISO 10540 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. ISO 10540-1 is the reference (colorimetric) method for the determination of the phosphorus content in fats and oils.