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An analytical HPLC method for the simultaneous determination of eight sulfonamides in swine wastewater was developed. The samples were collected from three states in Malaysia. Sample clean up was carried out by employing solid-phase extraction using a 60mg Oasis HLB (Waters) cartridge with 3ml reservoir. The HPLC column used was Supelcosil C18 (250mm×4.6mm I.D.) and elution was carried out using gradient...
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