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微型化学实验,即以尽可能少的化学试剂获取所需化学信息的实验方法与技术。虽然它的化学试剂用量一般只为常规实验用量的几分之一乃至几千分之一,却可以达到准确、明显、安全、方便和防止环境污染等目的。微型化学实验在中学教学中有其独特优势,但是在操作过程中同样存在一些不足,需要教师不断改进,本文以具体实验为例探讨二者的优缺点。
Micro-chemical experiments, experimental methods and techniques for obtaining the required chemical information with as few chemicals as possible. Although its chemical reagent dosage is only a fraction or a few thousandth of the amount normally used in conventional experiments, it can achieve the purposes of accuracy, obviousness, safety, convenience and prevention of environmental pollution. Micro-chemistry experiments have their unique advantages in middle school teaching, but there are also some shortcomings in the process of operation. Teachers need continuous improvement. This article discusses the advantages and disadvantages of the two experiments with examples.