CAJ | 학술논문

建立了气相色谱－质谱法测定塑料食品包装材料中4种有机锡（二甲基锡、三甲基锡、二乙基锡和一丁基锡）的分析方法。塑料食品包装材料样品经四氢呋喃溶解，甲醇沉淀杂质大分子后高速离心过滤，有机锡与四乙基硼酸钠反应生成有机锡的乙基衍生物，经正己烷萃取后，采用气相色谱－质谱法进行定性定量分析。在试验选定的最佳条件下，4种有机锡的线性范围在0．10～10mg／L 之间，相关系数均大于为0．999，方法检出限为0．2～0．3 mg／kg 之间，样品加标回收率为56．5％～109．4％，相对标准偏差小于12．6％。
건립료기상색보－질보법측정소료식품포장재료중4충유궤석（이갑기석、삼갑기석、이을기석화일정기석）적분석방법。소료식품포장재료양품경사경부남용해，갑순침정잡질대분자후고속리심과려，유궤석여사을기붕산납반응생성유궤석적을기연생물，경정기완췌취후，채용기상색보－질보법진행정성정량분석。재시험선정적최가조건하，4충유궤석적선성범위재0．10～10mg／L 지간，상관계수균대우위0．999，방법검출한위0．2～0．3 mg／kg 지간，양품가표회수솔위56．5％～109．4％，상대표준편차소우12．6％。
A method for the determination of 4organotin compounds (DMT,TMT,DET,MBT)in plastic food packing materials was developed by gas chromatography-mass spectrometry (GC-MS).The sample of plastic food packaging material was dissolved by tetrahydrofuran and the polymer in the sample was precipita-ted with methanol,and then high speed centrifugation and filtration,the organictin and tetraethyl borate sodium reaction generated organictin ethyl derivative.The ethyl derivatives of organtin compounds were extracted with nhexane and then qualitatively and quantitatively analyzed by gas chromatography-mass spectrometry.Under the optimal condition of determination,the linear calibration curve was obtained in the range of 0.10 ~10mg/L with a correlation coefficient above 0.999.The limits of quantification in the range of 0.2 ~0.3 mg/kg and the average recoveries were in the range of 56.5% ~109.4% for 4 organotins with the relative standard devia-tions below 12.6%.This method is accurate and sensitve,and it is suitable for the analysis of organotins in plastic food packing materials.