Table 2-1P: US-EPA Method 3052 Standard Method
US-EPA Method 3052 (A20)
Microwave Assisted Acid Digestion of Siliceous
and Organically Based Matrices
Type |
Matrix |
Analytes |
Detection |
Control |
Microwave Total Digestion |
Fly Ash Oil Sediment Sludge Soil |
Al, Ag, As, B, Ba, Be, Ca, Cd, Co, Cu, Cr, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, Tl, V, Zn |
FAAS ET-AAS ICP-AES ICP-MS |
Temperature Feedback Control |
Condensed Procedure |
Up to 0.5 g sample and 9 ± 0.1 mL HNO3 and 3 ± 0.1 mL HF (variable up to ± 2 mL) and alternatively 2 ± 2 mL HCl (can not be analyzed by ET-AA) Performance Criteria: Heat to 180 ±5°C in less than 5.5 min. Maintain 180 ±5°C for remainder of 15 min |
