矿物药绿矾及炮制品中铁赋存状态的研究

The Study of the Existential State of Iron in the Green Vitriols and Preparations of Mineral Drugs

本文采用裂解气相色谱、红外光谱及穆斯堡尔谱等方法，对矿物药绿矾及炮制品中铁的价态、存在形式进行了分析和研究。实验结果表明：绿矾生样及炮制品中的铁基本是以ＦｅＳＯ４形式存在，同时含有少量Ｆｅ３＋；绿矾在成矿过程中有气相包裹体形成。绿矾生样经酸性诃子溶液浸泡后，其中部分铁离子形成了有机化合物，而且Ｆｅ２＋／Ｆｅ３＋比值及铁离子的离子性比绿矾生样均有显著提高。

Methods of pyrolysis gas chromatography, infrared spectrum and Mossbauer spectroscopy have been used for the study of the existential state of iron in green vitriols and its preparations. Results indicated that the existential elementary form of the iron in the crude drugs of green vitriols and preparations were basically iron vitriol. The samples of mineral drugs existed simultaneously with a little Fe￣3+. Traces of gas composition of green vitriols in mineralization was formed in the way of inclusions. A part of iron ion formed organic compounds by immersion of acidic myrobalan solution. Simultaneously, Fe￣2+/Fe￣3+ ratio and tendency of ionic property make marked increment as compared with the crude drugs of green vitriols.