Determination of plasma catecholamines by high performance liquid chromatography with electrochemical detection: comparison with a radioenzymatic method. |
| |
Authors: | P Hjemdahl M Daleskog T Kahan |
| |
Affiliation: | Department of Pharmacology Karolinska Institutet, S-104 01 Stockholm, Sweden |
| |
Abstract: | High performance liquid chromatography with electrochemical detection has been compared to a radioenzymatic method for the determination of plasma catecholamines. With the use of an internal standard highly accurate determinations of plasma noradrenaline, adrenaline and dopamine were performed on 0.2–2 ml plasma with the chromatographic method. The radioenzymatic method required only 3 × 50 μl plasma. A comparison of noradrenaline and adrenaline concentrations measured by the two methods in a set of nine plasma samples showed an excellent agreement between the methods (r=0.993 and 0.994, respectively). Advantages and disadvantages with the two methods are discussed. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |