Table 1 Sensitivity and levels of detection for both steady-state resistance change and transient time constant

From: Transient thermal response of micro-thermal conductivity detector (µTCD) for the identification of gas mixtures: An ultra-fast and low power method

 

Time constant sensitivity (ns/ppm)

Transient calculated limit of detection

Resistance sensitivity (mΩ/ppm)

Steady-state calculated limit of detection

Helium

−0.0889

25

−0.732

20

Methane

−0.0334

66

−0.248

60

Argon

0.0217

101

0.185

81

Carbon dioxide

0.0124

178

0.125

120

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