DETECTION OF FUNGAL CARBOHYDRATE ANTIGENS BY HIGH-PERFORMANCE IMMUNOAFFINITY CHROMATOGRAPHY USING A PROTEIN A COLUMN WITH COVALENTLY LINKED IMMUNOGLOBULIN-G

被引:6
作者
DERUITER, GA [1 ]
SMID, P [1 ]
SCHOLS, HA [1 ]
VANBOOM, JH [1 ]
ROMBOUTS, FM [1 ]
机构
[1] GORLAEUS LABS,DEPT ORGAN CHEM,2300 RA LEIDEN,NETHERLANDS
来源
JOURNAL OF CHROMATOGRAPHY-BIOMEDICAL APPLICATIONS | 1992年 / 584卷 / 01期
关键词
D O I
10.1016/0378-4347(92)80010-N
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Fungal carbohydrate antigens were analysed by high-performance immunoaffinity chromatography (HPIAC) with immunoglobulin G (IgG) antibodies raised against extracellular polysaccharides of Mucor racemosus. The protein A-IgG complex was covalently bound with dimethyl pimelimidate, which enabled the use of strong acidic buffers to release the tightly bound antigens from the column. Prior to pulsed-amperometric detection, an anion-micromembrane suppressor was used to raise the pH of the effluent to above 12 without dilution. The HPIAC system provides a sophisticated method for the rapid and sensitive detection of antigenic oligomeric carbohydrates in biological samples and is proposed as an alternative to quantitative enzyme-linked immunosorbent assay techniques.
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页码:69 / 75
页数:7
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