Comparison of calibration methods in quantitative diffuse reflectance infrared spectroscopy.
Four different calibration methods were used for quantitative analysis of quartz and calcite in atmospheric aerosols by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS): (A) conventional calibration with one measurement on each standard (single calibration); (B) calibration with an internal standard; (C) calibration with parallel (n = 4) measurements on each standard (multiple calibration); (D) multiple calibration followed by reference reflectance correction. The accuracy and the precision of the methods were compared and it was found that by using method D the reliability of the conventional pellet preparation transmission technique can be achieved.
Krivácsy
Z
Z
Hungarian Academy of Sciences, Research Group of Analytical Chemistry, University of Veszprém, Veszprém, Hungary.
Hlavay
J
J