Chromatography Forum

Does anyone know how to include a compound in multiple compound groups?
I am using Chemstation B.04.03(16) for HPLC. We currently run cosmetics for preservatives content and we have some products that contain individual compounds while others contain them as a mixture.

The issue I'm having is that calibration is performed using the individual components concentration, but some of the mixes overlap. For example: component A has a 5-point calibration curve. One product uses a mix of preservatives A through D, while another product uses a mixture containing A, X, and Y.

Is there a way for compound A to be a member of more than one group so that the total concentration of mixtures can be calculated automatically?

Thank you for the help.

One product uses a mix of preservatives A through D, while another product uses a mixture containing A, X, and Y.

I'll answer by stating what we would do: we'd report actual concentrations of A, B, C, D, X, and Y. I'd leave it to others who feel they "need" to know to determine how much of A came from preservative 1 and how much from preservative 2.