GB/T 17812-2025 Active National standards

GB/T 17812-2025 Determination of vitamin E in feeds—High performance liquid chromatography

Publish Date: 2025-01-24 Implement Date: 2025-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 17812-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Animal and poultry feed and additives

ICS Name: \nFeeds

Publish Date: 2025-01-24

Implement Date: 2025-08-01

Pages: 16 pages

Scope

This document describes the high-performance liquid chromatography method for determining vitamin E in feed.
In this document, the saponification extraction method is suitable for determining vitamin E (dl-α-tocopherol) in compound feed, concentrated feed, concentrate supplements, compound premix feed, and vitamin premix feed; the direct extraction method is suitable for determining vitamin E (dl-α-tocopherol acetate) in compound premix feed and vitamin premix feed.
The quantification limit of the saponification extraction method in this document is 1.1 IU/kg; the quantification limit of the direct extraction method is 20 IU/kg.