GB/T 46929-2025 Active National standards

GB/T 46929-2025 Determination of bile acids in feeds

Publish Date: 2025-12-31 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46929-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Animal and poultry feed and additives

ICS Name: \nFeeds

Publish Date: 2025-12-31

Implement Date: 2026-07-01

Pages: 16 pages

Scope

This document describes the methods for determining bile acids in feed using liquid chromatography-tandem mass spectrometry and high-performance liquid chromatography.
The liquid chromatography-tandem mass spectrometry method in this document is suitable for determining bile acids (porcine bile acid, porcine deoxycholic acid, and goose deoxycholic acid) in compound feed, concentrated feed, and supplementary feed. The high-performance liquid chromatography method is suitable for determining bile acids (porcine bile acid, porcine deoxycholic acid, and goose deoxycholic acid) in additive premix feed and mixed feed additives.
The quantitative limits for porcine bile acid, porcine deoxycholic acid, and goose deoxycholic acid determined by liquid chromatography-tandem mass spectrometry in this document are all 0.10 mg/kg. The quantitative limits for additive premix feed determined by high-performance liquid chromatography are all 100 mg/kg, and the quantitative limits for mixed feed additives are all 1,000 mg/kg.