α-硅钼黄吸光光度法测定陶瓷粉笔中高含量硅

THE MEASUREMENT OF HIGH CONTENT OF SILICON IN THE CERAMIC CHALK BY α-Si-Mo ABSORPTION PHOTOMETRY METHOD

基于α型硅钼黄比β型硅钼黄更稳定,且灵敏度更低,有利于高含量硅的比色测定的特点,建立了α-硅钼黄吸光光度法测定陶瓷粉笔中高含量硅的分析方法。试验结果表明:α型硅钼黄比β型硅钼黄吸光光度法稳定性和准确性都有较大提高,可用于陶瓷粉笔中高含量硅的日常快速测定。

Compared with β-Si-Mo heterophony acid, α-Si-Mo heterophony acid has higher stability and lower sensitivity, which is advantageous to measure high content of silicon. Thus a-Si-Mo heterophony acid absorption photometry method was built up to measure high content of silicon in chalk. The result showed that the stability and accuracy of α-Si-Mo heterophony acid absorption photometry method were improved higher than that of β-Si-Mo heterophony acid method can be used for daily rapid analysis of high content of silicon in the ceramic chalk.