XRD-ICP-based preparation process optimization of Tibetan medicine'copper ash'
Objective:To expand the quality evaluation indexes and optimize the'cooper ash'processing process parameters by combining traditional character evaluation and component qualitative and quantitative analysis.Methods:By combining the traditional evaluation of texture and color of the Tibetan medicine'copper ash'and XRD-ICP qualitative and quantitative analysis,with the Cu2S content as the primary indicator,and the amount of cineration catalyst,cineration temperature and cineration time as the considerations,we adopted the L9(34)orthogonal method to optimize the'copper ash'processing process parameters and verified the accuracy and advisability of the to-be-optimized indexes through SEM-EDX.Results:The optimized'copper ash'production process conditions include:the cineration catalyst is 3 times as heavy as copper,the cineration temperature is 700 ℃,the cineration time is 2 hours,and the ash sample has the highest Cu2S content and the indexes are advisable at the moment.Conclusion:The optimized'copper ash'processing process parameters based on the traditional cineration process are cost-saving,safe and feasible,scientifically expand the traditional evaluation indexes of'copper ash'quality,and provide experimental evidences for the validity and safety of'copper ash'processing.
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