利用‘树皮’进行大气污染历史监测的新采样方法(英文)

The concentrations of lead and cadmium in the tree bark from Sanming and Xiamen, Fujian province, China were determined by atomic fluorescence spectrometry and inductively coupled plasma mass spectrometry. The results obtained in the outer tree bark and tree bark pocket could reflect the degree of present and historical air pollution at different sampling locations. Tree bark and tree bark pocket should be expected to be as a useful biomonitor of present and historical condition of air pollution

利用黑液木质素制备活性炭的研究进展

较全面地介绍了目前以造纸黑液酸析木质素为原料制备活性炭的研究进展,指出不同的活化剂以及活化方法将产生不同性质、不同用途的活性炭。通过比较磷酸活化、氯化锌活化、碳酸钾活化、氢氧化钾活化、氢氧化钠活化、高温水蒸气活化以及二氧化碳活化所制备活性炭的孔隙参数以及工艺条件差异,进而指出依据不同的用途确定使用不同的活化剂进行活化制备不同孔隙性质的活性炭,从而将制浆造纸黑液木质素进行综合利用并提高其使用价值