DavidsonDFFitzpatrickJ. A simple, optimised and rapid assay for urinary free catecholamines by HPLC with electrochemical detection. Ann Clin Biochem1985; 22: 297–303.
2.
JonesTAWalwickER. Interference of Tylenol with liquid chromatography of urinary catecholamines. Clin Chem1981; 27: 1951.
3.
DavidsonDF. Urinary free catecholamines—diagnostic application of an HPLC technique to the investigation of neural crest tumours. Ann Clin Biochem1987; 24: 494–9.