【摘要】 本文提出加大称样量,在高氯酸—硝酸混和酸中溶样,以避免碲的挥发,有利于用高浓度的盐酸将碲预还原;利用三价铁盐的缓冲作用,有效地抑制铜、钴、镍、砷、锑、铋等元素的干扰,从而无需分离富集,直接测定0.005ppm以上的碲。此方法用于化探样品中痕微量碲的测定,结果满意。更多还原

【Abstract】 By increasing the amount of sample, the sample is dissolved in a mixed acid of perchloric acid and nitric acid for avoiding volatilization of Te, which is beneficial to prereduction of Te by hydrochloric acid. Te (>0,005 .ppm ) is determined without seperation and pre-concentration by res-training the interference of Cu, Co, Ni As\ Sb, Bi and other elements.更多还原