【摘要】 海底沉积物用硝酸-高氯酸-氢氟酸消解,然后用ICP-AES法同时测定常量和微量元素。研究了样品中基体元素对微量元素测定的光谱干扰,并采用干扰曲线斜率法进行干扰校正,分析批量海底沉积物样品获得满意结果。更多还原

【Abstract】 Ten elements in 53 sediment samples were determined by ICP-AES with RSD of 0.68—2.3％ and recovery obtained by addition method from 84％ to 109％ in average.A correction for spectral overlapping interference was suggested. The interference curve slope is a corrective factor.Then a corrective amount of the element to be determined can be obtained by multiplying the concentration of interference element in the sample with the corrective factor. The real concentration of the element determined was obtained by subtracting the amount from the total concentration data for the analyte.更多还原