SPECTROPHOTOMETRIC ASSAY FOR THE DETECTION OF 2-AMINOPHENOLS IN BIOLOGICAL SAMPLES

被引:6
作者
CNUBBEN, NHP [1 ]
BLAAUBOER, B [1 ]
JUYN, S [1 ]
VERVOORT, J [1 ]
RIETJENS, IMCM [1 ]
机构
[1] UNIV UTRECHT,TOXICOL RES INST,3508 TD UTRECHT,NETHERLANDS
关键词
D O I
10.1006/abio.1994.1314
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A sensitive and efficient spectrophotometric assay is described for the determination of 2-aminophenols in biological samples, Using ferric ions as a metal catalyst, 2-aminophenol dimerizes in an acidic aqueous environment to 2-hydroxyisophenoxazin-3-one, an intensively colored dye. The newly developed assay is suitable for the detection of a-aminophenols in the micromolar range. The paper demonstrates that this chemical assay is also applicable for the determination of 2-aminophenols substituted with a halogen at the ortho, meta, or para position of the aromatic ring with respect to the amino moiety, lambda(max), and the molar extinction coefficient varying with the substituent pattern. Results obtained for fluorinated 2-aminophenol detection in biological samples by either this new method or F-19 NMR are similar. This observation corroborates that the newly developed assay is suitable for detection of 2-aminophenols in biological samples. (c) 1994 Academic Press, Inc.
引用
收藏
页码:165 / 171
页数:7
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