Results 311 to 313 of about 64,537 (313)
Some of the next articles are maybe not open access.

Humic Acids and Lignins

1980
openaire   +1 more source

What is humic acid?

Journal of Chemical Education, 1963
openaire   +1 more source

PAHs and Humic acids

2006
GIANGUZZA, Antonio   +2 more
openaire   +1 more source
humic substances
humic acid
soil
coal
hydrogen-ion concentration
6. clean water
3. good health
molecular weight
heavy metals
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