CAJ | 학술논문

为建立辣椒油中苯并芘标准物质的研制和定值方法,向辣椒油中添加一定量的苯并芘标准溶液,搅拌均匀后分装100瓶,随机抽取10瓶样品进行样品均匀性检验,在95%置信区间内,检验结果同时通过F检验和t检验.在恒温4℃冷藏和常温20℃条件下,在8周内进行样品的稳定件检验,检验结果通过t柃验,在95%置信区间内.并通过分析标准物质制备过程中的不确定度来源,计算出不确定度分量、合成标准不确定度及扩展不确定度.制备的辣椒油中苯并芘采用同位素稀释气相色谱-质谱联用法进行辣椒油中苯并芘定值,定值后的辣椒油样品中苯并芘含量为(9.98±0.914)μg/kg(k=2).本标准物质对于植物油巾苯并芘检测的方法验证和质量控制具有重要意义.
위건립랄초유중분병비표준물질적연제화정치방법,향랄초유중첨가일정량적분병비표준용액,교반균균후분장100병,수궤추취10병양품진행양품균균성검험,재95%치신구간내,검험결과동시통과F검험화t검험.재항온4℃랭장화상온20℃조건하,재8주내진행양품적은정건검험,검험결과통과t령험,재95%치신구간내.병통과분석표준물질제비과정중적불학정도래원,계산출불학정도분량、합성표준불학정도급확전불학정도.제비적랄초유중분병비채용동위소희석기상색보-질보련용법진행랄초유중분병비정치,정치후적랄초유양품중분병비함량위(9.98±0.914)μg/kg(k=2).본표준물질대우식물유건분병비검측적방법험증화질량공제구유중요의의.
A methodology regarding preparation and certification of the reference material for Benzo(a)pyrene in pepper oil was presented.Spiked pepper oil was packed in 100 bottles after homogenization and 10 of these 100 bottles were selected to test the homogeneity of the sample.Two batches of 10 samples from these 100 bottles were kept at 4 ℃ and 20 ℃,respectively.The stabilities of 20 bottles were analyzed e once a week for 8 consecutive weeks.Test results demonstrate the homogeneity and stability of that the pepper oil sample.Benzo(a)pyrene was determined by gas chromatography-mass spectrometry,based on isotope dilution.Uncertainty components,combined standard uncertainty and expanded uncertainty were also calculated,and the concentration of the sample was certified as(9.98±0.914)μg/kg,k = 2.The reference material is intended for use in the methodological validation and quality control for benzo(a)pyrene in edible vegetable oils