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本文论述了从商品２甲４氯钠盐水剂中制备２甲４氯标准样品的方法，采用红外光谱、紫外光谱、高效液相色谱法鉴定其纯度。
In this paper, a method for preparing 2 A 4 chloride standard samples from commercial 2 A 4 chloro sodium salt was described. The purity of 2 A 4 C was evaluated by IR, UV and HPLC.