The influence of raw powder particle size on the properties and microstructures of Ti (C, N)-based cermets has been studied. The conclusions are as follows: The
以溴代十六烷基三甲胺(CTMAB)为胶束试剂,β-环糊精(β-CD)为包含试剂,在优化实验条件下,用荧光光度法测定了补骨脂中补骨脂素和异补骨脂素.线性范围分别为2×10-9~8×10-6g/mL,2×10-9~8×10-7g/mL;检出限分别为2.67×10-11g/mL和1.15×10-11g/mL.
Under