Liquid membrane enrichment for the ion chromatographic determination of carboxylic acids in soil samples
✍ Scribed by Yin Shen; Veronica Obuseng; Lena Grönberg; Jan Åke Jönsson
- Book ID
- 107785843
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 584 KB
- Volume
- 725
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Several reagents and experimental conditions were tested to optimize the yield of the derivatization procedure for determining carboxylic acids in wines. Two techniques were applied for optimization: a modified sequential simplex method and a simultaneous modelling method. The results obtained were
A method is described for the determination of formic acid in air samples. Formic acid was collected on activated charcoal, desorbed with N,Ndimethylformamide and converted into p-bromophenacyl formate. The derivative was analyzed by high-performance liquid chromatography with UV detection (254 nm).
The sensitne detection of organic acids in hqmd chromatographlc (LC) systems remains problematic The behavlour of a potentlometnc detector was studied m this type of analysis, usmg Ion-selectwe PVC-based hqmd membranes One membrane contamed a quaternary ammonmm salt as a earner and another contamed
Trace enrichment for the GC analysis of a series of chlorinated pesticides and polychlorinated biphenyls (PCBs) in aqueous samples has been achieved through a simple on-line technique involving sorption on an LC micro-precolumn followed by direct elution into a gas chromatograph with hexane. A 5-m r