One critical advantage of full-spectrum analysis is the ability to isolate multiple absorbance curves from the total sample absorbance. This allows us to measure multiple chemical analytes simultaneously with a single analyzer, without using filters or moving parts.
Let’s look at the example of measuring H2S and SO2 simultaneously:
We can isolate the curve of H2S from the total sample absorbance spectrum. This is extremely useful for background correction — when lurking components in the process stream have overlapping absorbance with the target analyte. The high-resolution raw data allows for de-convolution of up to 5 chemical species, meaning that the OMA can be optionally configured to monitor additional chemicals.