DETERMINATION OF ALDEHYDES IN USED ENGINE OILS BY LIQUID-CHROMATOGRAPHY WITH CHEMILUMINESCENCE DETECTION

被引：7

作者：

GACHANJA, AN ^{[1
]}

LEWIS, SW ^{[1
]}

WORSFOLD, PJ ^{[1
]}

机构：

[1] UNIV PLYMOUTH,DEPT ENVIRONM SCI,PLYMOUTH PL4 8AA,DEVON,ENGLAND

来源：

JOURNAL OF CHROMATOGRAPHY A | 1995年 / 704卷 / 02期

关键词：

D O I：

10.1016/0021-9673(95)00244-H

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Straight-chain aliphatic aldehydes (C-6-C-14) were selectively derivatised in oxidised engine-oil dialysates with the fluorophore 3-aminofluoranthene. The derivatives were separated by reversed-phase liquid chromatography on a mid-bore (3.2 mm I.D.) column and detected by monitoring the chemiluminescence emission from a post-column reaction with bis-(2,4,6-trichlorophenyl)oxalate and hydrogen peroxide. Calibrations for the aldehydes in an oil matrix (0-5.0 . 10(-4) mol l(-1)) were linear (0.9980 < r(2) < 0.9997) with limits of detection (S/N = 3) in the range 3.0 . 10(-7)-3.4 . 10(-6) mol l(-1) (0.7-75 fmol on-column). Analysis of oil samples taken from an engine test at different times (0, 16, 24 and 32 h) showed that the concentration of aldehydes increased throughout the duration of the test.

引用

页码：329 / 337

页数：9

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