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樣品經(jīng)均質(zhì),1%三氯乙酸溶液提取,用OASIS MCX固相萃取 小柱凈化,減壓濃縮后以甲醇溶解定容,用Waters BEH—C。柱分離,乙腈和水為流動(dòng)相,經(jīng)液相色譜一串聯(lián)質(zhì)譜法檢測(cè)。三聚氰胺線性范圍為0.1—10.0mg/kg,相關(guān)系數(shù)r為0.9999,平均回收率為71% ~95% ,相對(duì)...
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