【摘要】 通过高分辨率傅立叶变换红外光谱法 (FTIR)和X射线衍射技术 (XRD)研究了海水养殖珍珠粉末在 1 60℃热处理前后的谱图的变化。XRD结果表明 ,加热前后珍珠和贝壳珍珠层粉末均为文石和方解石型碳酸钙 ,但加热后 ,有碳酸钙以外的衍射峰出现 ;FTIR吸收峰的峰形随着加热时间的增加也出现一些显著的变化。这些变化说明珍珠中除了碳酸钙以外 ,还应该有其他的成分存在。这种成分经证实为碳羟磷灰石 ,碳羟磷灰石的存在是导致峰形变化的主要原因更多还原

【Abstract】 Sea-water pearls have been studied with high resolution fourier transformation infrared spectroscopy(FTIR) and X-ray diffraction(XRD).The results of X-ray diffraction indicate that the samples are aragonite and calcite before and after thermal treatment at 160 ℃ for 5 hrs,and some other peaks appeared.The substantial change of the FTIR absorbed peak with the heating time indicates that there are something else existing in pearl.更多还原