Direct determination of organic acids in a ferrofluid (gamma-Fe2O3) by highperformance liquid chromatography
Direct determination of organic acids in a ferrofluid (gamma-Fe2O3) by highperformance liquid chromatography
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DOI：
10.1080/10826079608005537
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发表时间：
1996-01-01
影响因子：
1.3
通讯作者：
Dardoize, F
中科院分区：
文献类型：
--
作者：
Fauconnier, N;Bee, A;Dardoize, F
建立了一种简便的高效液相色谱法测定吸附在磁铁矿颗粒上的有机酸。这种技术的优点是可以识别和测量在同一粒子上结合的不同酸的比率。色谱分析是在酸性形式的磺化共聚物柱上实现的。通过在上清液中添加游离酸和吸附在颗粒上的酸，获得了较好的酸回收率。
A simple HPLC method has been developed for the determination of organic acids adsorbed on particles of maghemite. The advantage of this described technique is the possibility to identify and measure the ratios of differents acids bounded on the same particle. The chromatographic analysis is achieved on a sulphonated copolymer column in acidic form. Good recoveries of the acids were obtained by dosing the free acids in the supernatant and the acids adsorbed on the particles.