GB/T 13081-2022 Active National standards

GB/T 13081-2022 Determination of mercury in feeds

Publish Date: 2022-12-30 Implement Date: 2023-07-01 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 13081-2022

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Animal and poultry feed and additives

ICS Name: \nFeeds

Publish Date: 2022-12-30

Implement Date: 2023-07-01

Pages: 10 pages

Scope

This document describes the atomic fluorescence spectrometry, cold atomic absorption spectrometry, and direct injection methods for the determination of total mercury in feed. This document is applicable to the determination of total mercury in compound feed, concentrated feed, supplementary feed, additive premix feed, feed raw materials, and feed additives. Atomic fluorescence spectrometry: When the sample weighs 0.5 g and the volume of the dilution solution is 50 mL, the method's detection limit is 0.6 μg/kg, and the quantification limit is 3 μg/kg. Cold atomic absorption spectrometry: When the sample weighs 2 g and the volume of the dilution solution is 100 mL, the method's detection limit is 3 μg/kg, and the quantification limit is 10 μg/kg. Direct injection method: When the sample weighs 0.1 g, the method's detection limit is 0.3 μg/kg, and the quantification limit is 1 μg/kg.