| 空气中甲醛含量测定方法的探讨 |
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| 引用本文： | 赵秀英,张琦,张娟. 空气中甲醛含量测定方法的探讨[J]. 河北建筑工程学院学报, 2004, 22(4): 90-91,94 |
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| 作者姓名： | 赵秀英 张琦 张娟 |
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| 作者单位： | 张家口市建设工程质量检测中心;张家口市建设工程质量检测中心;张家口市建设工程质量检测中心 |
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| 摘 要： | 用酚试剂分光光度法测定公共场所空气中甲醛含量时在标准曲线绘制过程中,由于在标准溶液中加入显色剂后需要放置一段时间,再测定其吸光度.放置时间的长短,其吸光度也会发生相应的变化,也就是说对标准曲线的斜率有影响,其计算因子会发生变化.
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| 关 键 词： | 甲醛含量测定 放置时间 |
An Exploration of Determination of Farmaldehyde Content in the Air |
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| Zhao Xiuying,Zhang Qi,Zhang Juan. An Exploration of Determination of Farmaldehyde Content in the Air[J]. Journal of Hebei Institute of Architectural Engineering, 2004, 22(4): 90-91,94 |
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| Authors: | Zhao Xiuying Zhang Qi Zhang Juan |
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| Affiliation: | Zhao Xiuying Zhang Qi Zhang JuanZhangjiakou Architectural Quality Examination Center |
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| Abstract: | When you examine farmaldehyde content in the air in public by the way of SIGMA(3-METH-YL-2-BENZOTHIAO LINONE HYDRAZONE) sepcetrophotometer in drawing the normal curve,you have to wait for some time after entering colour manifestation, then examine the absorbency. If you wait for a long time, the absorbency will change. That is to say, it will affect the slope of the normal curve, and the figure coeffecient will change. |
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| Keywords: | farmaldehyde content determination posing time |
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