CAJ | 학술논문

为快速、有效区分硫酸盐矿物，选取几类具代表性的硫酸盐类矿物样品，采用红外光谱法的反射法和KBr压片法收集各样品的中红外吸收光谱，并进行对比和分析。结果表明，常规矿物测试应用物理特性很难将各矿物区分，红外吸收光谱可有效区分几类相似硫酸盐矿物。对相同结构类型、分子构型、晶系及对称类型的硫酸盐矿物，[SO4]2-基团与[OH]-基团的红外活性内振动频率具随阳离子半径减小而增大、阳离子质量增大而降低的规律。对反射法和KBr压片法测试结果比对，SO4基团与OH基团内振动特征峰基本一致，偏差约0~10 cm-1，个别约40± cm-1。
위쾌속、유효구분류산염광물，선취궤류구대표성적류산염류광물양품，채용홍외광보법적반사법화KBr압편법수집각양품적중홍외흡수광보，병진행대비화분석。결과표명，상규광물측시응용물리특성흔난장각광물구분，홍외흡수광보가유효구분궤류상사류산염광물。대상동결구류형、분자구형、정계급대칭류형적류산염광물，[SO4]2-기단여[OH]-기단적홍외활성내진동빈솔구수양리자반경감소이증대、양리자질량증대이강저적규률。대반사법화KBr압편법측시결과비대，SO4기단여OH기단내진동특정봉기본일치，편차약0~10 cm-1，개별약40± cm-1。
In order to quickly and effectively distinguish sulfate minerals,the paper collects several types representative of a certain purity sulfate mineral samples,each sample collected using the infrared reflection absorption spectroscopy method and KBr Compression method,and their comparison and analysis.The results show that the physical properties of the conventional mineral and infrared absorption spectral characteristics combined and comprehensive analysised, can ef-fectively distinguish similar sulfate minerals.Sulfate-type structure with the same molecular structure, the same crystal, with the symmetric vibration of the infrared type of activity, SO4 groups to OH groups follow different mass and radius of the cation, the frequency decreases with increasing radius of the cation,However, it is a fall laws with the quality in-crease.Compared the test results of the reflection method and KBr Compression method,two test SO4 groups and OH groups is consistented within the vibration characteristic peaks,deviation in about 0~10 cm-1,some deviation of about 40 ± cm-1.