Table 2.

Relationships between peak area or height and the reagent concentration (silver and reducing agent) under different conditions

Reducing agent	Conditions	Equation
		y	x	a±sa	b±sb	R2
Trolox	Procedure A	Area	[Tx]	8.8 ± 0.7	0.084± 0.003	0.997
		Height	[Tx]	2.8 ± 0.3	0.03± 0.01	0.994
	Procedure C	Area	[Ag+]	−39 ± 22	4.1± 0.3	0.996
		Height	[Ag+]	−3 ± 1	0.24± 0.01	0.994
Chlorogenic acid	Procedure D	Area	[CGA]	750 ± 419	13.1 ± 0.9	0.9831
		Height	[CGA]	19 ± 5	0.22± 0.01	0.9911
	Procedure E	Area	[CGA]	2320 ± 375	31 ± 1	0.9943
		Height	[CGA]	33 ± 12	0.63± 0.04	0.9855
	Procedure F	Area	[Ag+]	3094 ± 378	26 ± 3	0.9547
		Height	[Ag+]	65 ± 7	0.35± 0.06	0.9706