CAJ | 학술논문

建立一种微波消解-石墨炉原子吸收光谱法测定露酒中铅的方法。样品蒸干后经微波消解前处理，然后用石墨炉原子吸收光谱法测定露酒中的铅的浓度，铅的浓度在0.0～20.0 ng/mL范围内呈良好的线性关系，线性相关系数为0.9996，取样2.00 mL定容至25.0 mL，得方法的检出限为0.003 mg/L，方法的定量限为0.010 mg/L。测定结果的相对标准偏差为3.4%～5.5%，加标回收率为88％～104%。该法具有灵敏度高，准确度、精密度良好，检测过程快速、省力等优点，适合日常批量检测。
건립일충미파소해-석묵로원자흡수광보법측정로주중연적방법。양품증간후경미파소해전처리，연후용석묵로원자흡수광보법측정로주중적연적농도，연적농도재0.0～20.0 ng/mL범위내정량호적선성관계，선성상관계수위0.9996，취양2.00 mL정용지25.0 mL，득방법적검출한위0.003 mg/L，방법적정량한위0.010 mg/L。측정결과적상대표준편차위3.4%～5.5%，가표회수솔위88％～104%。해법구유령민도고，준학도、정밀도량호，검측과정쾌속、성력등우점，괄합일상비량검측。
Microwave digestion-graphite furnace atomic absorption spectrometry for determination of lead in alcoholic beverage was established. After drying by distillation, the sample was dissolved by microwave digestion and then lead was determined by graphite furnace atomic absorption spectrometry. The method had good linear relationship in the range of Pb 0.0-20.0 ng/mL. The linear correlation coefficient was 0.999 6. When constant 2.00-25.0 mL, the detection limit was 0.003 mg/L, the quantify limit was 0.010 mg/L. The relative stangard deviation was 3.4%-5.5%, and the recovery rate was 88%-104%. The method is accurate, simple and rapid, suitable for daily determination.