Independent report

Nitrofuran in shellfish

Recommendations for the analysis of nitrofuran marker metabolites in shellfish and other crustaceans.

• From: Government Chemist
• Published: 22 September 2011

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Nitrofuran in shellfish

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Details

The Government Chemist carried out several referee analyses for nitrofuran veterinary residues in shellfish and other crustaceans which led to recommendations for analysis and reporting.

The recommendations include:

• testing the inner core of animal meat in crustaceans, as semicarbazide (a nitrofuran metabolite) may occur naturally in the shell of crab, langoustines and shrimps
• for products in ice, the sample is thawed and the water drained away
• subtracting the measurement uncertainty from the mean result to yield a ‘not less than figure’ used for reporting ‘beyond reasonable doubt’

Published 22 September 2011