. Author manuscript; available in PMC: 2014 Sep 18.

Published in final edited form as: Eur J Nucl Med Mol Imaging. 2007 May 5;34(11):1823–1831. doi: 10.1007/s00259-007-0427-0

Table 1.

Extraction efficiency, elution efficiency, and HPLC analysis of soluble fractions of tissue homogenates at 1 h post injection of ¹⁸F-FPRGD2

Fraction	Blood	Urine	Liver	Kidney	U87MG
Extraction efficiency (%)
Insoluble fraction	5.2	ND	23.3	21.8	24.4
Soluble fraction	94.8	ND	76.7	78.2	75.6
Elution efficiency (%)
Non-retained fraction	2.4	1.2	23.7	12.6	28.4
Wash water	1.2	0.2	4.3	2.0	4.3
Acetonitrile eluent	96.4	98.6	72.0	85.4	67.4
HPLC analysis (%)
Intact tracer	74.2	99.6	68.8	97.1	96.6

ND not determined