TY - CONF A1 - Breitenbach, Martin T1 - Absoluter Anschluss der Stoffmenge an die SI-Einheiten Masse, Zeit und Stromstärke T2 - Aushang im Zweiggelände Adlershof der BAM, Haus 8.15, Flur - 5. Etage CY - Berlin, Germany DA - 2004-09-24 PY - 2004 AN - OPUS4-4519 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Breitenbach, Martin T1 - Die Coulometrie als absolute Methode für die Zertifizierung von Referenzmaterial T2 - Aushang im Zweiggelände Adlershof der BAM, Haus 8.15, Flur, 6.Etage CY - Berlin, Germany DA - 2004-09-24 PY - 2004 AN - OPUS4-4623 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Breitenbach, Martin T1 - Die Coulometrie als absolute Möglichkeit für die Zertifizierung von Referenzmaterial T2 - Tag der Chemie am 8. Juni 2005, Freie Universität Berlin CY - Berlin, Germany DA - 2005-06-08 PY - 2005 AN - OPUS4-7456 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Breitenbach, Martin T1 - Ergebnisse und Trends in der Elektrochemie in der AG I.12 T2 - Seminar der BAM-Abteilung I CY - Berlin, Germany DA - 2006-01-30 PY - 2006 AN - OPUS4-11689 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Recknagel, Sebastian A1 - Breitenbach, Martin A1 - Pautz, Joachim A1 - Lück, Detlef T1 - Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration-A comparison N2 - The mass fraction of potassium hydrogen phthalate (KHP) from a specific batch was certified as an acidimetric standard. Two different analytical methods on a metrological level were used to carry out certification analysis: precision constant current coulometric and volumetric titration with NaOH. It could be shown that with a commercial automatic titration system in combination with a reliable software for the end-point detection it is possible to produce equivalent results with the same accuracy in comparison to a definite method handled by a fundamental apparatus for traceable precision coulometry. Prerequisite for titrations are that a high number of single measurement are applied which are calibrated with a high precision certified reference material. KW - Potassium hydrogen phthalate KW - Precision constant current coulometry KW - Volumetric titration KW - Certified reference material PY - 2007 DO - https://doi.org/10.1016/j.aca.2007.07.062 SN - 0003-2670 SN - 1873-4324 SN - 0378-4304 VL - 599 IS - 2 SP - 256 EP - 263 PB - Elsevier CY - Amsterdam AN - OPUS4-15816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -