Table 4. Thermal Gradient between Heating and Stabilized Temperature.

heating temperature (°C)	40	80	120
average stabilized axial temperature (°C)	38.6	75.8	113.0
absolute error (°C)	–1.4	–4.2	–7
water flow rate (mL/min)	length to reach 99% of the stabilized temperature (m) – corresponding reactor volume (mL)
2	1.60–1.26	1.9–1.50	2.0–1.57
5	13.6–10.69	16.3–12.80	17.2–13.5
10	22.0–17.28	23.0–18.06	23.6–18.54