Datei im Netzwerk der BAM verfügbar ("Closed Access")
Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (16)
- Vortrag (10)
- Posterpräsentation (4)
- Beitrag zu einem Sammelband (1)
- Beitrag zu einem Tagungsband (1)
- Newsletter (1)
- Forschungsbericht (1)
Schlagworte
- CRM (7)
- ISO-Guide 35 (5)
- Referenzmaterial (4)
- Borosilicate glass (3)
- GD-OES (3)
- HR-CS-MAS (3)
- Hydrolytic resistance (3)
- Reference material (3)
- Reference materials (3)
- ZRM (3)
Organisationseinheit der BAM
- 1 Analytische Chemie; Referenzmaterialien (21)
- 1.6 Anorganische Referenzmaterialien (21)
- P Präsident (3)
- P.0 Präsident und andere (3)
- 1.1 Anorganische Spurenanalytik (2)
- S Qualitätsinfrastruktur (2)
- S.1 Qualität im Prüfwesen (2)
- 1.3 Instrumentelle Analytik (1)
- 1.4 Prozessanalytik (1)
- 1.7 Organische Spuren- und Lebensmittelanalytik (1)
Eingeladener Vortrag
- nein (10)
In this investigation, two conventional peristaltic pumps are compared with a new pump based on the “easy click” principle using a simultaneous ICP-AES instrument with standard operating conditions. It is found that the figures of merit achieved are quite comparable for all three pumps. Relative standard deviations (RSDs) range between 0.2% and 1.8%, and limits of detection as low as 0.1 μg/L have been achieved , demonstrating that the easy click principle of the new pump does not compromise the analytical figures of merit.
Die Vorgehensweise bei der Zertifizierung von Referenzmaterialien in der BAM entsprechend den Regeln des ISO-Guide 35 wird an Beispielen beschrieben. Darüber hinaus wird ein umfassender Überblick über Referenzmaterialien zur Analyse der Nichtmetalle Sauerstoff, Wasserstoff, Stickstoff, Kohle und Schwefel gegeben.
A fast and simple method for sulfur quantification in crude oils was developed by using high-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS-GFMAS). For this, heavy crude oil samples were prepared as microemulsion (shake) and injected into a graphite furnace (shut). Finally, the concentration of sulfur was determined by monitoring in situ the transient molecular spectrum of GeS at wavelength 295.205nm after adding a germanium solution as molecular forming agent (and go). Zirconium dioxide in the form of nanoparticles (45–55nm) was employed as a permanent modifier of the graphite furnace. Calibration was done with an aqueous solution standard of ammonium sulfate, and a characteristic mass (m0) of 7.5ng was achieved. The effectiveness of the proposed method was evaluated analizing, ten heavy crude oil samples with Sulfur amounts ranging between 0.3 and 4.5% as well as two NIST standard reference materials, 1620c and 1622e. Results were compared with those obtained by routine ICP-OES analysis, and no statistical relevant differences were found.
The analysis of non-metals normally is carried out using elemental analysers which require reference material for calibration. In the lecture the CRM-program of BAM suitable for non-metal-analysis is presented. There are CRMs available with non-metal contents in the low ppm up to the high percent region.
The analysis of Zinc layers on Iron sheets is one of the most essential application of Glow Discharge - Optical Emission Spectrometry (GD-OES). Since the year 2000 for this application calibration of GD-OES instruments mostly included the set of the six calibration samples CZ 2009-CZ 2014 from CKD. These CRMs are no longer available. Furthermore, in this application the analysis of Al and Mg became essential. To overcome this lack of calibration materials, the working group VDEh FA II.47 decided to organize the production and characterization of a new set of certified reference materials.
The analysis of Zinc layers on Iron sheets is one of the most essential application of Glow Discharge - Optical Emission Spectrometry (GD-OES). Since the year 2000 for this application calibration of GD-OES instruments mostly included the set of the six calibration samples CZ 2009-CZ 2014 from CKD. These CRMs are no longer available. Furthermore, in this application the analysis of Al and Mg became essential. To overcome this lack of calibration materials, the working group VDEh FA II.47 decided to organize the production and characterization of a new set of certified reference materials.