Table 2.

Mass and calculated molar extinction coefficients at 280 nm and 25 °C for BSA, HEWL, and ovalbumin [44-47].

Protein	Literature ε280 (g−1 L cm−1)	Mass ε280 in PBS (g−1 L cm−1) ± 95% CI	Mass ε280 in water (g−1 L cm−1) ± 95% CI	Molar ε280 in PBS (mM−1 cm−1) ± 95% CI
BSA	0.667 [44]	0.61 ± 0.06	0.61 ± 0.01	40 ± 4
HEWL	2.64 [45-46]	2.26 ± 0.17*	2.56 ± 0.14*	32.3 ± 2.4
Ovalbumin	0.69 – 0.76 [47]	0.63 ± 0.03	0.63 ± 0.02	26 ± 1

^*p = 0.004