吊兰乙醇提取物对空气中甲醛的吸收效果研究

Study on Absorption Effect of Ethanol Extract of Chlorophytum comosum on Air Formaldehyde

目的研究吊兰乙醇提取物对室内空气中甲醛的吸附效果。方法移取50.0 ml吊兰的乙醇提取液,通入甲醛含量为0.1 mg/m3的气体,研究反应时间(0～60 min)、溶液pH值(2～7)、温度(0～80℃)对甲醛吸收效果的影响。结果在最佳条件下,即20℃、pH=6的吊兰提取液处理0.121 mg/m3的甲醛气体15 min,吊兰提取液对甲醛的吸收量高达0.568×10-2 mg。结论吊兰乙醇提取物可用于净化室内空气中的甲醛。

Objective To study the absorption effect of ethanol extract of Chlorophytum comosum on formaldehyde in indoor air.Methods 50.0 ml ethanol extract solution was taken and pumped into the air which contains 0.1 mg/m3 formaldehyde.The absorption effect was studied with different reaction times（0-60 min）,different solution pH values（2-7）,different temperatures（0-80 ℃）.Results Under the optimum condition,temperature was 20 ℃,action time was 15 min,pH value was 6,formaldehyde content was 0.121 mg/m3,the adsorptivity was 0.568×10-2 mg.Conclusion Ethanol extract of Chlorophytum comosum can be used to purify formaldehyde in indoor air.