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sklademVydáno: 2019-01-09
BS ISO 21446:2019
Infant formula and adult nutritionals. Determination of <i>trans</i> and total (<i>cis</i> + <i>trans</i>) vitamin K<sub>1</sub> content. Normal phase HPLC
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| Označení normy: | BS ISO 21446:2019 |
| Počet stran: | 28 |
| Vydáno: | 2019-01-09 |
| ISBN: | 978 0 580 96185 4 |
| Status: | Standard |
DESCRIPTION
BS ISO 21446:2019
This standard BS ISO 21446:2019 Infant formula and adult nutritionals. Determination of trans and total (cis + trans) vitamin K1 content. Normal phase HPLC is classified in these ICS categories:
- 67.050 General methods of tests and analysis for food products
This document specifies a method for the quantitative determination of trans and total (cis + trans) vitamin K1 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 K1, 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.