Table III.

Theoretical Calculations of the %Increase in Thermal Mass on Fixing an Electrode Pair (with Guard Electrodes) to Different Volumes of Tubing Vial

Vial size mL	Vial weight (mg)	Electrode height mm	Sensing electrode			Top- and bottom-guard electrode			2 side-guard electrodes			Total area of electrode assembly (mm2)	Wt of electrode assembly	Thermal mass as % of vial weight
			Height (mm)	Width (mm)	Area (mm2)	Height (mm)	Width (mm)	Area mm2	Height (mm)	Width (mm)	Area (mm2)
2	4,419	4.4	2.22	11	24.37	1.11	15.9	17.64	4.7	1.11	5.22	94.48	37.793	0.86
4	5,584	4.5	2.23	16.3	36.34	1.11	15.9	17.64	4.7	1.11	5.22	118.43	47.37	0.85
6	7,998	8.4	4.19	16.3	68.29	2.09	21.75	45.58	6.5	2.08	13.52	254.81	101.92	1.27
8	8,639	8.4	4.19	16.3	68.29	2.09	21.79	45.67	6.5	2.09	13.59	255.11	102.04	1.18
10	9,282	10	5	18	90	2.5	24	60	7	3	21	342.00	136.8	1.47

The application of electrodes was practicable by the current method (manually) for vial sizes 6, 8 and 10 mL as the dimensions of different electrode components were greater than 1 mm thickness. On contrary for smaller-sized glass vials, i.e. 2 and 4 mL, dimension electrodes and its spacing fractionate between 1 mm which may require an alternate methodology (sputtering) to apply thermal mass of the electrode