【摘要】 研究了不同试剂及不同处理时间对桂花和白兰叶表皮污染物的清除效果.扫描电镜观察结果表明,采用CHC l3处理对桂花叶表皮污染物清除效果最佳,其次是C8H10;C8H10对白兰叶表皮污染物清除效果比CHC l3好.4种清洗剂对桂花和白兰叶表皮污染物处理时间要求不同,桂花处理3或6 h都能达到清除污染物的目的,而白兰处理2 h即可.4种清洗剂处理后再经30 m in超声波清洗,效果更佳.更多还原

【Abstract】 A comparative study was conducted to remove pollutants away from leaf epidermis of Osmanthus fragrans and Michelia alba by using different agents and during different treatment time.The results gained by observations of scanning electronic microscope(SEM) showed that CHCl3 was the best cleaning agent for removing pollutants from leaf epidermis of O.fragrans,and C8H10 was the secondary to it.However,C8H10 was better than CHCl3 for leaf epidermis of M.alba.Different treatment time was required when pollutants of leaf epidermis in both O.fragrans and M.alba were removed through four kinds of cleaning agents,3-6 h treatment was appropriate for O.fragrans,but 2 h for M.alba.The effect would be better if 30 min ultrasound treatment was done after treatment of various cleaning agents.更多还原