CAJ | 학술논문

[目的]探索一种简单快捷的利用赛曼校正石墨炉原子吸收法测定甘蔗中的镉和铅的方法.[方法]利用微波消解样品,建立了石墨炉原子吸收法测定甘蔗样品的镉和铅的方法.[结果]镉和铅的校正曲线在0-0.80μg/L浓度范围内呈线性,检出限分别为0.015和0.030 μg/L.2个甘蔗样品和1个有证标准物质镉和铅的加标回收率分别为96.7％-98.2％、104.6％-106.7％.[结论]该方法操作简单、灵敏度高、高效,适合甘蔗样品中镉和铅的测定.
[목적]탐색일충간단쾌첩적이용새만교정석묵로원자흡수법측정감자중적력화연적방법.[방법]이용미파소해양품,건립료석묵로원자흡수법측정감자양품적력화연적방법.[결과]력화연적교정곡선재0-0.80μg/L농도범위내정선성,검출한분별위0.015화0.030 μg/L.2개감자양품화1개유증표준물질력화연적가표회수솔분별위96.7％-98.2％、104.6％-106.7％.[결론]해방법조작간단、령민도고、고효,괄합감자양품중력화연적측정.
[Objective] The aim was to develop a rapid, simple method for determination of cadmium and lead in sugarcane samples by graphite furnace atomic absorption spectrometry. [Method] The method for determination of Cd and Pb in sugarcane by combined graphite furnace atomic absorption spectrometry and microwave digestion was used. [Result] The concentration curve was linear within the range of 0 -0.80 μg/L the detection limits of Cd and Pb was 0.015 and 0.030 μg/L, respectively. The precision for elevenfold determination of Cd and of Pb at the 0.40 μg/L level were 1.8% and 2.3% (RSD), respectively. Recoveries of 96.7% -98.2% for Cd and 104.6% -106.7% for Pb were obtained for two sugarcane samples and one certified reference material. [Conclusion] The proposed method has the advantages of simple operation, high sensitivity, and high efficiency; it was successfully used for determination of Cd and Pb in sugarcane samples.