RIDASCREEN® Sulfamethazin

Art. No.: R3011

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Product info

RIDASCREEN® Sulfamethazin

Art. No.: R3011

Intended use

RIDASCREEN® Sulfamethazin is a competitive enzyme immunoassay for the quantitative determination of sulfamethazine in milk, meat, honey, liver, kidney, fish, shrimp and egg.

General Information

Sulfonamides are widely used as feed additives, mainly for fattening of calves and pigs. Combined with inhibitors of dihydrofolate reductase such as trimethoprim, tetroxoprim, or pyrimethamine sulfonamides are also used in veterinary medicine for the treatment of intestinal infections, mastitis, pneumonitis and other (systemic) diseases. Sulfonamide residues may therefore occur in food of animal origin such as meat and milk. Particularly the transmission of the carcinogenic sulfamethazine represents a threat to human health. The EU established a maximum residue limit (MRL) for all substances of the sulfonamide-group of 100 μg/kg (ppb) in muscle, fat, liver, kidney and milk.



  • High specificity for sulfamethazine only: No significant cross reactivity to other sulfonamides.
  • Shortened test implementation of 45 min only.
  • Improved sensitivity and recovery.
Dear customers,

we have started to provide the documents for our products in an electronic format. These are the Instructions for Use (IFU), the Safety Data Sheets (SDS) and the Certificate of Analysis (CoA). For batches placed on the market after 01 January 2024, you can find our documents on the eIFU portal eifu.r-biopharm.com.

Art. NoR3011
Test formatMicrotiter plate with 96 wells (12 strips with 8 wells each).
Sample preparationMilk: direct use, meat: homogenization, centrifugation

Honey: extraction, clean-up with RIDA® C18 column, evaporation, reconstitution, precipitation

Liver, kidney, fish: homogenization, centrifugation, precipitation

Shrimp, egg: homogenization, extraction, evaporation, reconstitution
Incubation time45 min
LOD (Detection Limit)Milk approx. 4 μg/l, meat (bovine, porcine) approx. 5 μg/kg, meat (poultry) approx. 10 μg/kg, honey approx. 10 μg/kg*, liver approx. 6 μg/kg, kidney approx. 10 μg/kg, fish approx. 7 μg/kg, shrimp approx. 15 μg/kg, egg approx. 16 μg/kg
*For honey the LOD can deviate due to matrix effects.
Detection CapabilityMilk 10 µg/l, meat (bovine, porcine) 10 µg/kg, meat (poultry) 15 µg/kg, honey 20 µg/kg, liver 15 µg/kg, kidney 15 µg/kg, fish 20 µg/kg, shrimp 20 µg/kg, egg 15 µg/kg
Validated matrices

Milk, meat (bovine, porcine), meat (poultry), honey, liver, kidney, fish, shrimp and egg.

Detected analyte

Sulfamethazine in milk, meat, honey, liver, kidney, fish, shrimp and egg.

EvaluationMicrotiter plate spectrophotometer (450 nm)