0:49
Solid Sample Preparation
1:41
Extraction Procedure: Solid Samples
2:36
Extraction Procedure: Liquid Samples
3:25
Nonsoluble Material Removal
4:00
Humic Acid (HA) Precipitation and Separation
5:23
Ash Content, Purified HA Percentage, and Original Source Sample Pure HA Concentration Determination
6:05
Hydrophobic Fulvic Acid (HFA) Purification Column Preparation
7:14
Hydrophobic FA Isolation
10:33
Results: Representative HA and HFA Quantification