Table 2 Experimental figures-of-merit for ATR-FTIR & QCLD-sensor

From: A mid-infrared lab-on-a-chip for dynamic reaction monitoring

Sensor/value

λ (cm−1)

deff (μm)

c \(\left(\frac{{{{{{\rm{mg}}}}}}}{{{{{{\rm{ml}}}}}}}\right)\)

A (AU)

e \(\big(\frac{{{{{{\rm{ml}}}}}}}{{{{{{\rm{mg}}}}}}\cdot \upmu {{{{{\rm{m}}}}}}}\big)\)

ATR-FTIR

~1597

0.838 (meas.)

20

~0.00118

7.04 E−5

QCLD

~1597

43.1 (meas.)

21.4

~0.065

7.04 E−5

  1. The values include: wavelength λ, effective optical penentration-depth deff, analyte concentration c, absorbance A, and absorption coefficient e at 1597 cm−1.
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