생체 시료 중 카테콜 아민류, 세로토닌 및 대사물질들의 HPLC/ECD 동시 정량분석

• 영문명: Simultaneous Determination of Catecholamines, Serotonin and Their Metabolites in the Biological Sample using HPLC/ECD
• 발행기관: 대한약학회
• 저자명: 민지현(Jihyun Min) 한영희(Younghee Hahn)
• 간행물 정보: 『약학회지』제55권 제4호 (2011년), 1~28쪽, 전체 28쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2011.08.30

영문 초록

Simultaneous monitoring of catecholamines and serotonin with their appropriate extraction from the biological samples is required in order to understand thoroughly the regulation of the central and peripheral nervous system. In the present research the segmented gradient elution with the solid phase extraction using a C18 cartridge rather than the previous isocratic elution with alumina extraction is successfully employed to determine norepinephrine (NE), epinephrine (E), dopamine (DA), serotonin (5HT), 3,4-dihydroxyphenylacetic acid (DOPAC) and 5-hydroxyindoleacetic acid (5HIAA) simultaneously within 20 minutes using 3,4-dihydroxyhydrocinnamic aicd as the internal standard (IS). Linearities were obtained in the concentration range between 5 x 10-6 M and 1 x 10-4 M for all 7 compounds with detection limits of 0.6 μM ~ 1.9 μM. The present HPLC/ECD method yielded reasonable accuracy (relative error; -1.4% ~ 1.1%) and precision (relative standard deviation; 0.4% ~ 1.9%) for 9 measurements of the standard solution consisting of NE, E, DA, 5HT, DOPAC and 5HIAA compounds. Recoveries of catecholamines, serotonin and their metabolites from human serum were in the range of 57% ~ 86%. While the concentrations of NE and 5HT in the serum of normal Sprague-Dawley rat were found as 1.4x10-6 M and 2.6x10-6 M, respectively, the contents of NE and 5HT in the serum of the stressed rat were increased 5.6 times and 1.4 times more, respectively.

키워드

catecholamines serotonin HPLC-ECD segmented gradient elution solid phase extraction