Application Notes

Linear Transformation Applied to the Calibration of Analytes in Various Matrices Using a Total Hydrocarbon Analyzer

Read more at American Laboratory http://www.americanlaboratory.com/914-Application-Notes/176462-Linear-Transformation-Applied-to-the-Calibration-of-Analytes-in-Various-Matrices-Using-a-Total-Hydrocarbon-Analyzer/.

Total hydrocarbon analyzers provide linear responses to methane and other hydrocarbons; however, the slope and intercept measurements are dependent on the matrix. This requires that calibration be conducted for each matrix gas. Interruptions due to the matrix effect make automation of gas analysis inefficient.

Use of data acquisition software with built-in linear transformation capability eliminates the need for multiple calibrations during the sequence of analyses, and enables a universal calibration performed in nitrogen matrix to be used for analytes in a variety of matrices.