Mechanism of Water Grind Processing of Realgar / 中国药房

ABSTRACT

OBJECTIVE:To optimize the water grind processing of Realgar.METHODS:The content of As2O3 in the processed product was determined by Hydride generation atomic fluorescence spectrometry.A systematic study was performed on realgar's water grind processing based on dynamic observation under a microscope,product yield,the content of As2O3 etc.RESULTS:The optimized water grind processing of Realgar was as follows:grinding Realgar into paste while adding water with the amount of water and the grinding time investigated;investigating the amount of water added for the grinding of the paste and its Resting time;investigating the standing time of suspension water in the water grind processing,and investigating the drying temperature in the water grind processing.Meanwhile,the grain size of the processed product was processed into round and uniform in shape with their particle size at less than 5 ?m.CONCLUSION:The study has validated and optimized the water grind processing of Realgar and contributed to the reduction of the contents of poisonous components in the processed product.