WEI Xun1 XIAO Tiqiao1 CHEN Min1 LUO Yuyu1 XI Zaijun1 LIU Lixiang1 DU Guohao1 XU Hongjie1 Tian Yulian2 ZHU Peiping2 HUANG Wanxia2 YUAN Qingxi2 1. Feasibility of using X-ray phase-contrast imaging to study alkaloidial precipitates[J]. Nuclear techniques, 2004, (10): 721-724.
WEI Xun1 XIAO Tiqiao1 CHEN Min1 LUO Yuyu1 XI Zaijun1 LIU Lixiang1 DU Guohao1 XU Hongjie1 Tian Yulian2 ZHU Peiping2 HUANG Wanxia2 YUAN Qingxi2 1. Feasibility of using X-ray phase-contrast imaging to study alkaloidial precipitates[J]. Nuclear techniques, 2004, (10): 721-724.DOI:
The alkaloids are organic nitrogenous bases found mainly in plants
which deposit with certain reagents in water. These precipitation reactions can be used to determine the alkaloids’ existence and to refine them. The present paper studied three different types of alkaloidal precipitates by X-ray phase-contrast imaging (XPCI) based both on Beijing Synchrotron Radiation Facility (BSRF) and on a nanofocus X-ray tube laboratory system. The XPCI results reveal the needle precipitate of colchicines (amine alkaloid)
the micelle precipitate of arecoline (pyridine alkaloid) and the petal precipitate of berberine (isoquinoline alkaloid). Comparison of the results obtained by different methods has been made to verify the feasibility of XPCI’s future application to more complicated chemical systems.