Coulometric Karl Fischer titration with a diaphragm-free cell: Cell design and applications

Food Chemistry

Volumn 96, Issue 3, 2006, Pages 431-435

  Lanz, M ^a   De Caro, C A ^a   Ruegg K ^a   De Agostini, A ^a  

^a Mettler Toledo Schweiz GmbH   (Switzerland)

Author keywords

Coulometry; Diaphragm free cell; Karl Fischer titration; Traces; Water determination

Indexed keywords

ANALYTIC METHOD; CONFERENCE PAPER; COULOMETRY; ELECTROCHEMICAL ANALYSIS; EXPERIMENTAL DESIGN; FOOD ANALYSIS; GENERATOR; STANDARDIZATION; TITRIMETRY; WATER ANALYSIS; WATER CONTENT;

EID: 28444491724     PISSN: 03088146     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.foodchem.2005.03.050     Document Type: Conference Paper

References (11)

1. Aichert, A., 2002. Fundamentals of the coulometric Karl Fischer titration with selected applications. METTLER TOLEDO applications brochure No. 32 (ME-51725060).
2. A.J. Bard, and L.R. Faulkner Electrochemical methods, fundamentals and applications 2nd ed. 2001 Wiley New York
3. Cedergren A (1998). Device for coulometric determination of water by the Karl Fischer method. International patent No. WO 98/28616, publication date 2 July 1998.
4. A. Cedergren, and S. Jonsson Progress in Karl Fischer coulometry using diaphragm-free cells Analytical Chemistry 73 22 2001 5611 5615
5. Dahms H (1994). High current coulometric KF titrator. United States Patent No. 5 300 207, publication date 5 April 1994.
6. Lanz M, et al. (2001). Unpublished laboratory test results. If the electrolyte conductivity value is less than 10 mS/cm, the DL32/DL39 switches off the 400 mA generator current pulses and remains in a lower range from 60 to 200 mA. If the electrolyte conductivity value is less than approx. 5 mS/cm, the 200 mA pulses are no longer feasible, and the instrument displays an error message.
7. U. Nordmark, and A. Cedergren Conditions for accurate Karl Fischer coulometry using diaphragm-free cells Analytical Chemistry 72 1 2000 172 179
8. U. Nordmark, and A. Cedergren Progress in pulsed-current Karl Fischer coulometry using diaphragm-free cells Fresenius' Journal of Analytical Chemistry 367 6 2000 519 524
9. U. Nordmark, M. Rosvall, and A. Cedergren Optimum conditions for pulse generation in diaphragm-free Karl Fischer coulometry Fresenius' Journal of Analytical Chemistry 368 5 2000 456 460
10. Richter W, Hürlimann W (1995). Diaphragmalose Messzelle für die coulometrische Karl Fischer-Titration. European patent No. 0 390 727 B1, publication date 18 Oct 1995.
11. Scholz (1992). Reagent, cell and method for the coulometric determination of water. United States Patent No. 5 139 955, publication date 18 August 1992.