印染助剂2015，Vol.32Issue(7)：57-60,4.
微波萃取分光光度法测定刨花板中甲醛的含量
Determination on the formaldehyde content in particle board with microwave extraction spectrophotometry
摘要
Abstract
The formaldehyde was extracted from the particle board using microwave extraction and water as solvent. The formaldehyde and phenol reaction generated piperazine, which was further oxidized into the blue- green complex in the presence of Fe3+. The complex's absorption peak was at 630 nm. According to the change at the absorption peak, the content of formaldehyde in particle board was determined. The optimum extraction conditions were that the extraction temperature was 120 ℃, the extraction time was 20 min. The optimal coloration conditions were as fol ows: 10 mL 0.1 mol/L hydrochloric acid, 0.4 mL ferric ammonium sul-fate solution, 2.0 mL phenol reagent solution, and the reaction temperature was 30 ℃, the reaction time was 40 min. The linear regression equation was y=0.352 7x+0.082, the linear correlation coefficient R2=0.999 4. The relative standard deviation was 0.249 7%and the recovery was 97.08%~101.7%.关键词
甲醛含量/微波萃取/分光光度法Key words
content of formaldehyde/microwave extraction/spectrophotometry分类
化学化工引用本文复制引用
王文波,殷广明,赵志明..微波萃取分光光度法测定刨花板中甲醛的含量[J].印染助剂,2015,32(7):57-60,4.基金项目
黑龙江省自然科学基金(B201312) （B201312）
