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[Analysis of decay curves with biphasic kinetics]
Zeitschrift Fur Lebensmittel-Untersuchung Und -Forschung
|November 1, 1986
Summary
Medication of trout and carps with chloramphenicol and sulfadimidine leaves drug residues. A biexponential decay model estimates drug elimination half-lives and withdrawal times for fish.
Area of Science:
- Aquatic pharmacology
- Fish drug residue analysis
- Pharmacokinetics in aquaculture
Context:
- Chloramphenicol and sulfadimidine are used to treat bacterial infections in farmed fish.
- Tissue drug residues are a concern for food safety and regulatory compliance.
- Understanding drug elimination kinetics is crucial for establishing safe withdrawal periods.
Purpose:
- To model the biexponential decay of chloramphenicol and sulfadimidine residues in trout and carp tissues.
- To estimate the fast and slow elimination half-lives of these drugs.
- To provide a framework for calculating reliable withdrawal times in aquaculture.
Summary:
- Drug residues in trout and carp following treatment with chloramphenicol and sulfadimidine were analyzed.
- A biexponential decay model accurately described the observed residue data without systematic deviation.
- This model allows for the estimation of drug elimination half-lives and the calculation of withdrawal times using confidence limits.
Impact:
- Provides a validated method for assessing drug withdrawal periods in fish.
- Enhances food safety by ensuring drug residues are below acceptable limits.
- Offers a monitoring tool for regulatory agencies and the aquaculture industry.
- Applicable to other chemicals with biexponential decay kinetics.