Table 4.

The E_a and k₂₅ parameters for k_catCO2/K_C, k_catO2/K_O, k_catCO2/k_catO2, and K_O/K_C ratios

Method	Temperature range (°C)	Parameter	k 25	E a
Radiolabel	10–35	k catCO2/KC	0.09 ± 0.00	–3.45 ± 3.94
MIMS	10–25	(s−1 Pa−1)	0.10 ± 0.01	27.75 ± 3.38*
	25–40		–	–0.41 ± 6.10
MIMS	10–25	k catO2/KO	0.06 ± 0.00	75.93 ± 7.41*
	25–40	(s−1 kPa−1)	–	30.09 ± 0.70*
MIMS	10–25	k catCO2/kcatO2	2.55 ± 0.16	–2.58 ± 6.73
	25–40		–	15.10 ± 4.92*
Radiolabel	15–35	K O/KC	0.65 ± 0.11	–46.20 ± 8.80*
MIMS	10–40	(kPa Pa−1)	0.71 ± 0.01	–45.60 ± 2.57*

The E_a parameters were tested to determine if they were significantly different from zero (t-test), where the * next to the E_a values indicates a P-value <0.05.