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谭朝阳； 袁宏佳； 刘文龙； 郑宇；.煅制对紫石英中有害元素铅、镉、铜、砷、汞影响的研究[J].湖南中医药大学学报英文版,2011,31(5):41-43.[Click to copy
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| 煅制对紫石英中有害元素铅、镉、铜、砷、汞影响的研究 |
| 谭朝阳；袁宏佳；刘文龙；郑宇； |
| (湖南中医药大学中药药性与药效研究实验室) |
| 摘要: |
| 目的探讨煅制过程中各工艺参数对紫石英中有害元素的影响。方法采用正交实验法,以原子吸收分光光度法测定铅、镉、砷、汞、铜的含量为指标,对煅制温度、煅制时间、醋用量、醋淬次数进行考察。结果煅制温度、煅制时间、醋用量、煅制次数4个因素对铅、镉、砷、铜的含量均有非常显著性影响(P<0.01);煅制温度对汞含量有非常显著性影响(P<0.01),煅制次数对汞含量有显著性影响(P<0.05),而煅制时间、醋用量对汞含量无显著性影响(P>0.05)。结论经煅淬后,紫石英中所含铅、镉、砷、汞、铜等有害元素的含量均有不同程度的降低,经优选的最佳炮制工艺为700℃煅制20 min,每100 g紫石英每次加醋15 mL,煅淬3次。 |
| 关键词: 紫石英 煅制 有害元素 正交试验 原子吸收分光光度法 铅 镉 铜 砷 汞 |
| DOI： |
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| 基金项目:国家公益性行业科研专项(200807044);湖南省科技厅资助项目(2007SK3095) |
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| Effects of calcining Pb, Cd, As, Hgharmful elementsCu in fluorite |
| TAN Zhao-yang,YUAN Hong-jia,LIU Wen-long,ZHENG Yu |
| (TCM University of Hunan,Changsha,Hunan 410208,China)) |
| Abstract: |
| Objective To investigate the effects of calcining process on harmful elements Ph, Cd, As, Hg and Cu in fluorite. Methods With the orthogonal experimental design, the content of lead, cadmium, arsenic, mercury and copper, were used as detecting indexes[()
study the calcining time and temperature, vinegar -quenching processing technology. Results The calcining temperature, calcining time, the amount of vinegar and processing times were sig-
nificant effective[()the content of lead, cadmium, arsenic and copper (P<0.01); Calcining tom-perature was significant[()affect the mercury content(P<0.01); Processing times was significant[()
affect the Hg content (P<0.05), while calcining time and the vinegar amount were not significant[()affect Hg content (P>0.05). Conclusion After calcining, the content of lead, cadmium, ar-
sonic, mercury and copper in Fluorite are decreased in deferent degrees. The optimum process-
ing conditions are as follows:calcining temperature at 700 0C for 20 minites, in 100 g quenching
with 15 mL vinegar each time, and processing three times. |
| Key words: fluorite calcine harmful elements orthogonal experiment AAS |
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