. 2020 Jan 30;12(2):94. doi: 10.3390/toxins12020094

Table 5.

The absorbance of Alternaria toxins in individual standard solutions.

Mycotoxin	Solvent	Conc., μg/mL	λ_max/λ_ref., nm	A (Average, n = 3)			CV, %
Mycotoxin	Solvent	Conc., μg/mL	λ_max/λ_ref., nm	Fresh	10 Months	14 Months	CV, %
AOH	MeOH	20	256/380	3.23	3.21	3.19
			300/380	0.81	0.81	0.82	0.7
			340/380	0.82	0.81	0.82
AME	ACN	10	256/380	2.71	2.73	2.77
			300/380	0.57	0.57	0.60	3.0
			340/380	0.62	0.62	0.64
ALT	MeOH	20	241/380	2.89	in 4 months*: 2.90	n.a.
			279/380	1.02	1.03	n.a.	0.7
			320/380	0.57	0.57	n.a
TE	MeOH	20	206/350	2.13	2.29	2.27
TE	MeOH	20	282/350	1.32	1.32	1.35	1.3

MeOH—methanol, ACN—acetonitrile, AOH—alternariol, AME—alternariol methyl ether, ALT—altenuene, TE—tentoxin; CV—coefficient of variation of absorbance. *—The total storage period for ALT was four months, thus spectra were obtained immediately after preparation and in four months.