标准摘要
[中文适用范围]: 本文件规定了一种使用正相 (NP) 高效液相色谱 (HPLC) 结合柱后还原和荧光检测来定量测定婴儿、儿童和成人营养品中反式和总(顺式 + 反式)维生素 K1 的方法。 该方法在约 2 μg/l 至 80 μg/l 反式维生素 K1 的标准范围内表现出良好的线性,定量限 (LOQ) 估计为标准品 0.4 μg/l 和 0.09 μg/l。 假设将 4 克样品稀释至 10 毫升,则样品为 100 克即用型 (RTF)。 [外文原描述]: This document specifies a method for the quantitative determination of trans and total ( cis + trans ) vitamin K 1 in infant, pediatric and adult nutritionals using normal phase (NP) high-performance liquid chromatography (HPLC) with post-column reduction and fluorescence detection. The method demonstrated good linearity over a standard range of ~2 μg/l to 80 μg/l trans vitamin K 1 , and the limit of quantification (LOQ) was estimated to be 0,4 μg/l for standards and 0,09 μg/100 g ready to feed (RTF) for samples assuming 4 grams of sample are diluted to 10 ml.
英文名称Infant formula and adult nutritionals — Determination of trans and total (cis + trans) vitamin K1 content — Normal phase HPLC