An Analytical Evaluation of the Synergistic Effect on Biodiesel Oxidation Stability Promoted by Binary and Ternary Blends Containing Multifunctional Additives

Table 2

Samples doped in binary combinations at different concentrations and the presence of Cu(II).

Sample code	Additives and concentrations
	Additive 1	Mass (mg·kg^−1)	Additive 2	Mass (mg·kg^−1)
CB-A1	p-CH3	25	PG	50
CB-A2	p-CH3	25	PG	100
CB-A3	p-CH3	25	PG	150
CB-A4	p-CH3	25	ALZ	20
CB-A5	p-CH3	25	CA	20
CB-B1	p-CH3	50	PG	50
CB-B2	p-CH3	50	PG	100
CB-B3	p-CH3	50	PG	150
CB-B4	p-CH3	50	ALZ	20
CB-B5	p-CH3	50	CA	20
CB-C1	p-CH3	100	PG	50
CB-C2	p-CH3	100	PG	100
CB-C3	p-CH3	100	PG	150
CB-C4	p-CH3	100	ALZ	20
CB-C5	p-CH3	100	CA	20
CB-D1	PG	50	ALZ	20
CB-D2	PG	50	CA	20
CB-D3	PG	100	ALZ	20
CB-D4	PG	100	CA	20
CB-D5	PG	150	ALZ	20
CB-D6	PG	150	CA	20
CB-E1	ALZ	20	CA	20