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以煎液中的Fe~(2+)、炮制品中的单质硫和炮制品加盐酸后析出的硫为指标,研究宋、明、清和现行的5种方法以及温度变化对炮制品的影响。为自然铜的进一步研究提供了参考。
Taking the Fe2+ in the decoction, the elemental sulfur in the processed products, and the sulfur precipitated after adding hydrochloric acid to the processed products as indicators, the Song, Ming, Qing and the current five methods and the effects of temperature changes on the processed products were studied. For the further study of natural copper provides a reference.