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This article tries to personify potassium ferrioxalate crystal as "I" to describe the formation process and the factors affecting the growth of potassium ferrioxalate crystal. After growing into beautiful green crystals, I dreamed I was participating in the jewelry beauty contest. A serious of wonderful conversations between emerald and I revealed the properties and applications of potassium ferrioxalate crystal. It inspires and guides students to understand the growth of crystals and their properties, and it also stimulates students' interest in studying chemistry. 相似文献
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利用手机光线传感器作为检测器搭建了一套可用于定量分析实验的简易光度计,将其用于邻二氮菲分光光度法测定铁的实验,进行了5次平行实验,每次实验拟合直线的R2值在0.999左右,待测样品中铁含量的RSD值为2.81%。将简易光度计用于邻二氮菲分光光度法测定铁的实验并与分光光度法进行对比,待测物铁含量分别为5.11和4.94μg·mL-1。利用手机光线传感器作为检测器的自组装光度计实验,简单、方便、准确、易于实现,可替代传统的分光光度计;通过搭建简易光度计并进行测定实验,有利于增强学生对分光光度计的结构和原理的理解,激发学生的学习兴趣,提高实验教学的质量。 相似文献
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