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解决方案
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Gas chromatographic/chemiluminescence detection (thermal energy analyzer-nitrogen mode) method for the determination of dibutylamine in hams.
发布:联和层析贸易(上海)有限公司浏览次数:632A gas chromatographic (GC) procedure is described for the determination of dibutylamine (DBA) in ham at less than 1 ppm. Sample is extracted with 0.5N HCl, centrifuged, made basic, and then extracted with isopropyl alcohol. Final determination is by GC/thermal energy analysis in the nitrogen mode. Six replicate analyses of ham fortified with 0.5 ppm DBA gave a recovery of 90.2 +/- 3.4%. Over a range of 0.5 to 3.0 ppm DBA, the repeatability was 0.07 ppm, and the coefficient of variation was 6.07%. Limit of detection was 0.1 ppm. Effectiveness of the procedure was demonstrated on selected ham samples. 英国CSI TEA610 热能分析仪(原Thermo Electron厂牌)
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