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《Hubei Forestry Science and Technology》 2017-06
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Determination of Formamide Release in Foaming Wood Plastic Composites

Dong Lijun;Wang Wei;Zhang Li;Li Hui;Lin Yi entry exit inspection and quarantine bureau;Xu Zhou entry exit inspection and quarantine bureau;Hu Bei academy of forestry;  
In order to administrate effectively the using of azodicarbonamide in foaming wood plastic composites,we established determination method of formamide release using gas chromatographic mass spectrometry combined with microwave assisted extraction.We also discussed the influence of extraction solvent.The result indicates that the optimal conditions were as follows:extraction solvent:acetone,extraction temperature:70℃,extraction time:30 min.Under the optimal conditions,the calibration curves were linear in the range of 0.01-1.0 mg/L,the recovery distributed in the range of 98-116%,the RSD distributed in the range of 2.4-6.2%.The method is effective in determining the formamide release in foaming wood plastic composites,easily to operate and has a preferable extracting effect.
【CateGory Index】: O657.63;TB332
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