动植物脂肪和油.添加植物甾醇的食品和膳食补充剂中甾醇和甾烷醇的测定

[中文适用范围]： 本文件规定了测定含有添加植物甾醇的食品和膳食补充剂以及植物甾醇食品添加剂浓缩物中游离甾醇/甾烷醇和甾醇/甾烷醇酯（0.1%至97%质量分数）的参考方法。 奶和奶制品（或来自奶和奶制品的脂肪）不包括在本文件的范围内。 由于可能对气相色谱图产生干扰，该方法不适用于米糠油浓度超过 20% 的基质。 [外文原描述]： This document specifies a reference method for the determination of free sterols/stanols and steryl/stanol esters (0,1 % to 97 % mass fraction) in foods and dietary supplements containing added phytosterols and in phytosterol food additive concentrates. Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this document. This method does not apply to matrices that contain rice bran oil at concentrations of more than 20 % due to possible interferences in the gas chromatogram.