@article{oai:kitami-it.repo.nii.ac.jp:00006157, author = {佐々木, 満雄 and 岡, 宏}, issue = {2}, journal = {北見工業大学研究報告}, month = {Mar}, note = {application/pdf, This paper deals with the osmotic pressure measurements on solutions of peat humic acid,and with the calculation of its molecular weight. As the solvent,mixture of dimethylformamide and water (9:1) was used. The result was as follows : The moss peat humic acid (KUSHIRO) was about 2,100,the reed peat humic acid (KUSHIRO) was about 2,400,the reed peat humic acid (ISHIKARI KANAZAWA) was about 2,500,and the coal humic acid (KUSHIRO) was about 1,200. The above data are in neary agreement with the molecular weight as determined by the method of chemical analysis of carboxyl and hydroxyl radicals}, pages = {29--34}, title = {泥炭フミン酸に関する研究(3)溶透圧測定法による泥炭フミン酸の分子鼠測定}, volume = {1}, year = {1964} }