GB/T 21995-2025 Active National standards

GB/T 21995-2025 Determnation of nitroimidazoles in feeds—Liquid chromatography-tandem mass spectrometry

Publish Date: 2025-06-30 Implement Date: 2026-01-01 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 21995-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Animal and poultry feed and additives

ICS Name: \nFeeds

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 16 pages

Scope

This document describes the method for determining five nitroimidazole drugs in feed by liquid chromatography-tandem mass spectrometry.
This document is suitable for the determination of metronidazole, dimetridazole, losartan, isopropazole, and tinidazole in compound feed, concentrated feed, supplementary feed, premixed feed additives, and mixed feed additives.
The detection limit of this document is 5 μg/kg, and the quantification limit is 10 μg/kg.