The influence factors on NR latex medical product modified with nano-CaCO3 were studied.The result showed that the good properties of NR latex medical products were obtained in the conditions that the content of surface conditioning agent,nano-CaCO3 powder were 2.5% and 3%,respectively.Meanwhile,the stirring times,which were needed for the modifying of nano-CaCO3 surface,were 20 minutes.
The optimal conditions for the fluorescent complex formation of SAAQ CTMAB Al(Ⅲ) were established.The fluorescence excitation and emission maxima are at 378nm and 490nm,and the molar ratio of Al(Ⅲ) to SAAQ was determined to be 1∶2.The proposed method was used for the determination of aluminum in hair and green tea in the range of 0～200μg·dm -3 .
