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目的对公共场所空气中甲醛测定方法进行了改进。方法采用蒸馏水作吸收液采样,回到实验室再加入酚试剂溶液。结果改进后的方法吸光值比较稳定且操作简便。结论改进的方法适用于公共场所空气中甲醛浓度的测定。
Objective To improve the determination of formaldehyde in the air of public places. Methods The distilled water was used as the absorbent to sample and returned to the laboratory to add the phenol reagent solution. The results of the improved method of absorbance is relatively stable and easy to operate. Conclusion The improved method is suitable for the determination of formaldehyde concentration in the air of public places.