Screening of homocysteine from newborn blood spots by high-performance liquid chromatography with coulometric array detection

被引：33

作者：

Accinni, R ^{[1
]}

Bartesaghi, S

De Leo, G

Cursano, CF

Achilli, G

Loaldi, A

Cellerino, C

Parodi, O

机构：

[1] Osped Niguarda Ca Granda, CNR, Inst Clin Physiol, Cardiol Dept A De Gasperis, I-20162 Milan, Italy

[2] Sacra Famiglia Hosp, Fatebenefratelli AFaR, Erba, Italy

[3] Euroserv SRL, Parbaiago, Italy

[4] Ctr Cardiol Fdn Monzino, Milan, Italy

来源：

JOURNAL OF CHROMATOGRAPHY A | 2000年 / 896卷 / 1-2期

关键词：

electrochemical detection; detection; LC; homocysteine; amino acids;

D O I：

10.1016/S0021-9673(00)00715-9

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Homocystinuria, due to a deficiency of cystationine-beta -synthase, refers to the rare inborn error of the metabolism of homocysteine. The identification and prompt treatment of homocystinuria during the neonatal period can prevent or greatly reduce the severity of the clinical consequences. We report a new method for homocystinuria diagnosis from dried blood spots on newborn screening cards, based on high-performance liquid chromatography with electrochemical coulometric array detection. This method shows an excellent linearity (y = 10.3x + 0.04; r = 0.999), precision (RSDs ranged from 2.7 to 5.8%), recovery (87%) and appears to be a cost-effective approach, being simple, rapid, sensitive and cheap. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：183 / 189

页数：7

共 20 条

[1] High-performance liquid chromatographic determination of total plasma homocysteine with or without internal standards [J].