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A pressurized liquid extraction (PLE) method was developed for melamine analysis in pet foods. The PLE method which utilized an accelerated solvent extraction (ASE®) system was also compared with sonication and polytron extraction methods. The parameters for the optimized PLE method were temperature (75 °C for wet pet food, 125 °C for dry pet food), pressure (1,500 psi), static time (10 min), flush...
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