CAJ | 학술논문

应用双道无色散原子荧光光谱仪,采用HNO_3-HClO4体系消解土壤样品,研究了光电管负高压、灯电流、载气和屏蔽气流量、硼氢化钾和铁氰化钾浓度对土壤铅测定结果的影响.在选定实验条件下,铅的线性范围为0～100 μg·L~(-1),检出限为0.04 μg·L~(-1),相对标准偏差为1.25%,加标回收率为93.8%~105.6%.测定表明该方法简便、快捷,测定结果准确可靠.
응용쌍도무색산원자형광광보의,채용HNO_3-HClO4체계소해토양양품,연구료광전관부고압、등전류、재기화병폐기류량、붕경화갑화철청화갑농도대토양연측정결과적영향.재선정실험조건하,연적선성범위위0～100 μg·L~(-1),검출한위0.04 μg·L~(-1),상대표준편차위1.25%,가표회수솔위93.8%~105.6%.측정표명해방법간편、쾌첩,측정결과준학가고.
A double-channel and dispersionless atomic fluorescence spectroscopy has been developed for determination of trace lead in soils after digestion using HNO_3-HClO_4 system. The effect of the experimental conditions and instrumental operating parameters (e.g. negative voltage, current of lampKBH4 concentration and K_3Fe(CN)6 concentration, et al. ) on the determination of Pb is investigated. Under the optimum conditions,the linear range of determination is 0～100 μg·L~(-1), and the detection limit is 0.04 μg·L~(-1). The instrumental relative standard deviation is 1.25% and the recovery is about 93.8%～105.6%. This method is simple and rapid. The testing results are accurate and reliable.