Table 3.

The matrix effect (ME) and recovery (RE) for each analyte.

Substance	Matrix Effect (ME)/%		IS-Normalized Matrix Effect (MEnorm)/%		Recovery (RE)/%
	1 ng/mL	20 ng/mL	1 ng/mL	20 ng/mL	1 ng/mL	20 ng/mL
Goserelin	91	89	107	101	77	87
Buserelin	87	81	102	92	82	77
Triptorelin	73	79	85	90	53	65
Octreotide	66	79	77	89	69	65
	50 ng/mL
IS	85	88	-	-	80	88