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[Study of diphacinone in biological samples by high performance liquid chromatography/diode array detector].
1Forensic Medical Examination Center, Beijing Bureau of Public Security, Beijing 100085, China.
Se Pu = Chinese Journal of Chromatography
|January 25, 2003
Summary
This study presents a new analytical method for detecting diphacinone in rabbit tissues using high-performance liquid chromatography (HPLC) and solid-phase extraction (SPE). The method offers accurate quantification of diphacinone, crucial for toxicological analysis.
Area of Science:
- Analytical Chemistry
- Pharmacology
- Toxicology
Context:
- Diphacinone is a widely used anticoagulant rodenticide.
- Accurate detection of diphacinone is essential for toxicological investigations and forensic analysis.
- Existing analytical methods may lack sensitivity or require complex sample preparation.
Purpose:
- To develop and validate a sensitive and reliable analytical method for diphacinone determination.
- To optimize solid-phase extraction (SPE) conditions for efficient analyte recovery.
- To establish a robust chromatographic separation and detection method for diphacinone in biological matrices.
Summary:
- A high-performance liquid chromatography (HPLC) method was developed for diphacinone determination in rabbit liver, blood, urine, and kidney.
- Solid-phase extraction (SPE) using SAX, CN, or SILICA GEL cartridges was employed for sample cleanup and concentration.
- The method demonstrated excellent linearity (r=0.9999), a wide linear range (1-100 mg/L), and a low detection limit (5 ng), with good average recoveries (82.2-91.0%).
Impact:
- Provides a validated analytical tool for quantifying diphacinone exposure in toxicological and forensic settings.
- Facilitates accurate risk assessment and monitoring of diphacinone poisoning.
- Contributes to the advancement of analytical methodologies for anticoagulant rodenticides.