Table 1

Samples	Quantities of samples	HNO₃ (mL)	H₂O₂ (mL)	Digestion program
Samples	Quantities of samples	HNO₃ (mL)	H₂O₂ (mL)	Steps	Time (min)	Power (W)	Temperature (ºC)	References
Coffee powder	300 (mg)	7	1	1	5	750	120	45
	(n=4)			2	3	750	120
				3	10	750	210
				4	15	750	210
Coffee infusion^*	2 (mL)	5	1	1	5	400	80	46
	(n=4)			2	5	400	120
				3	5	400	210
Rat livers and diets	300 (mg)	6	2	1	3	250	130	46
	(n=4)			2	5	630	130
				3	22	500	130
				4	15	0	130

^*All infusion volumes were reduced to 1/4 of the initial volume.

Table 1: Conditions of digestion program used in coffee samples, rat livers and diets.