The LREC measures by kinetic spectroscopy the catalytic concentration of enzymes in biological samples using reference measurements based on the primary reference procedures recommended by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC). It performs mesurements in the following enzymes:
| Measurement Uncertainty | |
| Alanine aminotransferase (ALT) | 2,2 % |
| a-Amylase (AMY) | 2,2 % |
| Aspartate aminotransferase (AST) | 2,5 % |
| Creatine kinasa (CK) | 2,2 % |
| g-Glutamyltransferase (GGT) | 2,2 % |
| L-Lactate dehydrogenase (LD) | 2,3 % |
| Alcaline Phosphatase (ALP) | 2,8 % |