【摘要】 采用加速溶剂萃取(ASE)快速萃取仪提取肉制品中的硝酸根及亚硝酸根,并用KOH梯度淋洗,IonPac AS18离子色谱柱分离,电导检测对其进行检测。在相同的萃取体积和萃取时间下,ASE萃取与传统超声萃取相比具有萃取率高的优点。在所建立的色谱条件下,NO3-、NO2-的质量浓度与峰面积或峰高具有很好的线性和重复性。检出限分别为2.33、1.62μg/L。更多还原

【Abstract】 An accelerated solvent extraction-ion chromatographic（ASE-IC） method was developed for the extraction and determination of NO^-₃ and NO^-₂ in meat.Compared with the ultrasonic extraction method,the ASE method has the advantages of higher extraction rate and less extraction time.The NO^-₃ and NO^-₂ were separated by gradient elution on an Ion Pac AS18 column and detected by conductivity detector.The detection limits for NO^-₃ and NO^-₂ are 2.33 μg/L and 1.62 μg/L,respectively. The correlation coefficients for NO^-₃ and NO^-₂ are over 0.99 with peak area or peak height measurements.The method is sensitive,selective and effective,and can be rapidly and easily performed.更多还原