ICP-AES测定锰矿中二氧化硅含量

Determination of SiO2 in the Manganese ore by ICP-AES

试样经氢氧化钠和过氧化钠混合熔剂碱熔,再用酸浸提,干过滤后定容。采用ICP-AES测定锰矿中二氧化硅含量。本法测定锰矿标样(冶金部标准样品505)中二氧化硅含量,其测定结果的相对标准偏差RSD为1.08%,测定平均值为33.93%(标样推荐值为33.58%)。

The swatch was melt with the sodium hydroxide and the sodium peroxide mix melting agent, lixiviated with acid ,dryly filtered, prepared into solution in a volume. The silicon dioxide content in the manganese ore was determined by ICP-AES. The standard sample （metallurgy department standard sample 505） was measured by this method with the RSD of 1.08% and the mean content value of 33.93% （recommendation value of standard sample is 33.58%）.