Search

LiNi0.8Co0.2−xTixO2 cathode materials with different titanium (Ti) contents have been prepared from Ni0.8Co0.2−xTix(OH)2 (0 ≤ x ≤ 0.05) precursors. Phase and morphology analyses indicated that the products were microspheres in space group R 3 ¯ m assembled from smaller secondary particles. Phase and elemental analyses indicated more serious cation mixing in the layered materials obtained with Ti doping. The LiNi0.8Co0.2−xTixO2 material with x = 0.0125 showed optimal electrochemical performance with improved cycling performance (capacity retention ratio of 95.8% after 100 cycles) and high rate capability (162 mAh g−1 at 2C). Therefore, Ti doping can be considered an efficient approach to improve the electrochemical properties of such cathode materials. [ABSTRACT FROM AUTHOR]

Bopu powder® and Sangrovit® were developed from Macleayacordata and are widely used in agriculture and animal husbandry, but their impurities have been rarely reported in the literature. Impurity analysis is of great importance to the quality and safety of veterinary drugs. In this study, high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS) combined with a screening method was used to screen and characterize the impurities in Bopu powder® and Sangrovit®. A total of 58 impurities were screened from Bopu powder® and Sangrovit® using the screening strategies, of which 39 were identified by their accurate m/z value, characteristic MS/MS data, and fragmentation pathways of references. This established method was used for impurity analysis for the first time and proved to be a useful and rapid tool to screen and identify the impurities of Bopu powder® and Sangrovit®, especially for those at trace levels in a complex sample. In addition, this study marks the first comprehensive research into impurities in these two products and has great significance for the systematic detection of impurities in other plant-derived drugs. [ABSTRACT FROM AUTHOR]

Bopu powder ® and Sangrovit ® were developed from Macleaya cordata and are widely used in agriculture and animal husbandry, but their impurities have been rarely reported in the literature. Impurity analysis is of great importance to the quality and safety of veterinary drugs. In this study, high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS) combined with a screening method was used to screen and characterize the impurities in Bopu powder ® and Sangrovit ® . A total of 58 impurities were screened from Bopu powder ® and Sangrovit ® using the screening strategies, of which 39 were identified by their accurate m/z value, characteristic MS/MS data, and fragmentation pathways of references. This established method was used for impurity analysis for the first time and proved to be a useful and rapid tool to screen and identify the impurities of Bopu powder ® and Sangrovit ® , especially for those at trace levels in a complex sample. In addition, this study marks the first comprehensive research into impurities in these two products and has great significance for the systematic detection of impurities in other plant-derived drugs.