In this study, an optimized high performance liquid chromatography-fluorescence detector (HPLC-FL) method for the determination of benzo[a]pyrene in edible oil was established. HPLC was performed with Thermo Fisher Sc...In this study, an optimized high performance liquid chromatography-fluorescence detector (HPLC-FL) method for the determination of benzo[a]pyrene in edible oil was established. HPLC was performed with Thermo Fisher Scientific C18 column (250 mm×4.6 mm, 5 μm) as the chromatographic column and acetonitrile and water as the mobile phase, and the excitation wavelength and emission wavelength of fluorescence detector were 286 and 430 nm, respectively. The response was high, and the linear range was 0.5-10.0 ng/ml. The lowest limit of detection was 0.11 ng/ml, and the average recovery was 92.5%. This method is suitable for quantitative analysis of benzo[a]pyrene content in edible oil.展开更多
应用HPLC-FLD法建立测定植物油中苯并(a)芘含量的检测方法,并比较不同植物油中苯并(a)芘的含量差异。本实验通过对样品的净化处理方法、色谱柱选择等条件的优化,最终采用中性氧化铝固相萃取小柱对样品进行净化处理,色谱条件为Waters T3 ...应用HPLC-FLD法建立测定植物油中苯并(a)芘含量的检测方法,并比较不同植物油中苯并(a)芘的含量差异。本实验通过对样品的净化处理方法、色谱柱选择等条件的优化,最终采用中性氧化铝固相萃取小柱对样品进行净化处理,色谱条件为Waters T3 C18(250mm×4.6mm,5μm),乙腈∶水(88∶12,v/v),柱温35℃,进样量20μL,荧光检测器。方法学考察结果显示其线性范围、精密度、重复性、稳定性和加标回收试验均符合标准要求,经反复烹饪后的植物油脂中苯并(a)芘含量明显高于一般的植物油脂。结果表明该检测方法准确、稳定、可行,可用于植物油中苯并(a)芘含量测定,为控制食用植物油脂的质量安全提供参考依据。展开更多
文摘In this study, an optimized high performance liquid chromatography-fluorescence detector (HPLC-FL) method for the determination of benzo[a]pyrene in edible oil was established. HPLC was performed with Thermo Fisher Scientific C18 column (250 mm×4.6 mm, 5 μm) as the chromatographic column and acetonitrile and water as the mobile phase, and the excitation wavelength and emission wavelength of fluorescence detector were 286 and 430 nm, respectively. The response was high, and the linear range was 0.5-10.0 ng/ml. The lowest limit of detection was 0.11 ng/ml, and the average recovery was 92.5%. This method is suitable for quantitative analysis of benzo[a]pyrene content in edible oil.
文摘应用HPLC-FLD法建立测定植物油中苯并(a)芘含量的检测方法,并比较不同植物油中苯并(a)芘的含量差异。本实验通过对样品的净化处理方法、色谱柱选择等条件的优化,最终采用中性氧化铝固相萃取小柱对样品进行净化处理,色谱条件为Waters T3 C18(250mm×4.6mm,5μm),乙腈∶水(88∶12,v/v),柱温35℃,进样量20μL,荧光检测器。方法学考察结果显示其线性范围、精密度、重复性、稳定性和加标回收试验均符合标准要求,经反复烹饪后的植物油脂中苯并(a)芘含量明显高于一般的植物油脂。结果表明该检测方法准确、稳定、可行,可用于植物油中苯并(a)芘含量测定,为控制食用植物油脂的质量安全提供参考依据。