CAJ | 학술논문

采用微波消解样品,火焰原子吸收光谱法测定稻米中铜、锌、锰、铁四种微量金属元素的含量.样品用HNO3和H2O2消解,在微波消解炉中加热.在最佳条件下,对样品平行测定6次,各元素的线性回归方程的相关系数在0.9993～0.9999之间,加标回收率在96.3%～98.7%之间,相对标准偏差(n=6)为0.05%～0.67%.
채용미파소해양품,화염원자흡수광보법측정도미중동、자、맹、철사충미량금속원소적함량.양품용HNO3화H2O2소해,재미파소해로중가열.재최가조건하,대양품평행측정6차,각원소적선성회귀방정적상관계수재0.9993～0.9999지간,가표회수솔재96.3%～98.7%지간,상대표준편차(n=6)위0.05%～0.67%.
A method of flame atomic absorption spectrometry for determination of trace metal elements (Cu, Zn, Mn, and Fe) in rice is described, Samples were digested with HNO3 and H2O2 and heated in microwave digestion oven. Under optimal conditions, correlation coefficients of the linear regression equations were in the range of 0.9993~0.9999, recoveries were 96.3%~98.7%,and RSDs were 0.05%~0.67%(n=6).