Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (40)
- Posterpräsentation (23)
- Vortrag (22)
- Buchkapitel (3)
- Beitrag zu einem Tagungsband (2)
- Sonstiges (2)
- Beitrag zu einem Sammelband (1)
- Forschungsbericht (1)
Schlagworte
- Laser ablation (34)
- ICP-MS (32)
- Cell (19)
- Imaging (19)
- Nanoparticle (17)
- LA-ICP-MS (11)
- Nanoparticles (7)
- Immunohistochemistry (5)
- Bioimaging (4)
- Contrast agent (4)
- Copper (4)
- Laser ablation ICP-MS (3)
- Magnetic resonance imaging (3)
- Mass cytometry (3)
- SERS (3)
- Spheroid (3)
- Antibody (2)
- Atomic Force Microscopy (2)
- Bio-imaging (2)
- Calibration (2)
- Cancer (2)
- Cells (2)
- Cyanide (2)
- Extracellular matrix (2)
- Fluorescence (2)
- Laser ablation (LA)-ICP-MS (2)
- Life sciences (2)
- MRI (2)
- Surface-enhanced Raman scattering (2)
- Tissue (2)
- Traceability (2)
- Uncertainty (2)
- X-ray tomography (2)
- AFM (1)
- Affinity (1)
- Alanine scan (1)
- Analytical methods (1)
- BAM-S005 (1)
- Bewitterung (1)
- Binding molecule (1)
- Bio-Imaging (1)
- Bioanalytical methods (1)
- Bioconjugation (1)
- Boden (1)
- Bodenluft (1)
- Brain (1)
- Carbodiimide crosslinking (1)
- CdSe/ZnS quantum Dots (1)
- Cell systems/single cell analysis (1)
- Cellular uptake (1)
- Characterisation (1)
- Chelate (1)
- Chrom(VI) (1)
- Chromium (1)
- Combinatorial chemistry (1)
- Coreshell structures (1)
- Crystal (1)
- DC arc OES (1)
- Diatretglas (1)
- Direct current optical emission spectrometry (1)
- Direct solid sampling technique (1)
- Direkte Feststoffanalytik (1)
- Docking (1)
- EPMA (1)
- ETV ICP OES (1)
- Electrothermal vaporization (1)
- Elemental Distribution (1)
- Endosome (1)
- Evaluierung von Analyseverfahren (1)
- Fast single pulse response (1)
- Fibroblast (1)
- Fluorescence label (1)
- Fractionation (1)
- GD-MS (1)
- GDMS (1)
- Gadolinium (1)
- Glass (1)
- Glycosaminoglycan (1)
- Gold nanoparticles (1)
- HT22 (1)
- HeLa (1)
- Heavy metals (1)
- Homogeneity (1)
- Homogenität (1)
- ICP (1)
- ICP-OES (1)
- ICP-ToF-MS (1)
- IDMS (1)
- Immunofluorescence (1)
- Impurity (1)
- Inductively coupled plasma optical emission spectrometry (1)
- Inflammation (1)
- Iron oxide (1)
- Isotope dilution (1)
- Kupfer (1)
- LA-ICP-OES (1)
- LA-ICP-SFMS (1)
- Lab-on-a-chip (1)
- Lanthanoid (1)
- Laser Ablation (1)
- Laser Ablation/Imaging (1)
- Laser cooling (1)
- Laserablation (1)
- LiYF4 (1)
- MALDI (1)
- MALDI-TOF MS (1)
- MST (1)
- Magnesium (1)
- Mass spectrometry (1)
- Mass spectrometry/ICP-MS (1)
- Massenspektrometrie (1)
- Messunsicherheit (1)
- Metal (1)
- Metal nanoclusters (1)
- Metals (1)
- Method standardization (1)
- Method validation (1)
- Methodenvalidierung (1)
- Microanalysis (1)
- Molecular imaging (1)
- Multiple sclerosis (1)
- Nanocluster (1)
- Nanomaterial (1)
- National law (1)
- Non-target (1)
- Normung (1)
- OBOC library (1)
- OCP (1)
- On-chip screening (1)
- One-bead-one-compound library (1)
- Organic contaminants (1)
- PAK (1)
- PCB (1)
- PCP (1)
- Particle aggregation (1)
- Particle size distribution (1)
- Peptide (1)
- Peptide aptamers (1)
- Peptide library (1)
- Protein imaging (1)
- Purity (1)
- Quantification (1)
- Quantitative bioimaging (1)
- Reference glasses (1)
- Reference material (1)
- Referenzmaterial (1)
- Referenzmaterialien (1)
- Ringversuche (1)
- SI (1)
- SIMS (1)
- SPR (1)
- Schadstoffaustrag (1)
- Silica nanoparticles (1)
- Siliciumcarbid (1)
- Silicon carbide powder (1)
- Single cell (1)
- Single cell analysis (1)
- Soil (1)
- Spark ablation (1)
- Spark-OES (1)
- Speroid (1)
- Spurenelemente (1)
- Stabilität (1)
- Standardization (1)
- Sulfur (1)
- Surface plasmon resonance (1)
- Synthetic peptides (1)
- Synthetic standard (1)
- Säulenelution (1)
- Thin tissue sections (1)
- Umweltsimulation (1)
- Vor-Ort-Analytik (1)
- ZRM (1)
- Zinc (1)
- pL-droplets (1)
Organisationseinheit der BAM
- 1 Analytische Chemie; Referenzmaterialien (35)
- 1.1 Anorganische Spurenanalytik (34)
- 1.8 Umweltanalytik (5)
- P Präsident (4)
- P.0 Präsident und andere (4)
- 1.5 Proteinanalytik (3)
- 1.6 Anorganische Referenzmaterialien (3)
- 9 Komponentensicherheit (3)
- 9.5 Tribologie und Verschleißschutz (3)
- 1.7 Organische Spuren- und Lebensmittelanalytik (2)
Eingeladener Vortrag
- nein (22)
In view of its intended use as a sample for proficiency testing or as a reference material the stability of the extractable trace element contents of a soil from an irrigation field was tested using the extraction with 1 mol/L ammonium nitrate solution according to DIN 19730. Therefore, changes of the extractability of sterilized and non sterilized soil samples stored at different temperatures were evaluated over a period of 18 months. Sets of bottles were kept at -20 °C, +4 °C, about +20 °C and +40 °C, respectively. The NH4NO3 extractable contents of Cd, Cr, Cu, Ni, Pb and Zn were determined immediately after bottling and then after 3, 6, 12 and 18 months with ICP-AES or ETAAS. Appropriate storage conditions are of utmost importance to prevent deterioration of soil samples prepared for the determination of NH4NO3 extractable trace element contents. Temperatures above +20 °C must be avoided. The observed changes in the extractability of the metals (especially for Cr and Cu) most likely could be related to thermal degradation of the organic matter of the soil. There is no need to sterilize dry soil samples, because microbiological activity in soils with a low moisture content appears to be negligible with regard to trace element mobilization.
Special new techniques of atomic spectrometric methods for trace analysis of high purity metals
(2003)
Vergleich unterschiedlicher Ansätze zur Kalibrierung bei der Analyse von reinem Kupfer mit LA-ICP-MS
(2007)
The members of the committee NMP 264 Chemical analysis of non-oxidic raw and basic materials of the German Standards Institute (DIN) have organized two interlaboratory comparisons for multielement determination of trace elements in silicon carbide (SiC) powders via direct solid sampling methods. One of the interlaboratory comparisons was based on the application of inductively coupled plasma optical emission spectrometry with electrothermal vaporization (ETV ICP OES), and the other on the application of optical emission spectrometry with direct current arc (DC arc OES). The interlaboratory comparisons were organized and performed in the framework of the development of two standards related to the determination of mass fractions of metallic impurities in powders and grain sizes of ceramic raw and basic materials by both methods. SiC powders were used as typical examples of this category of material. The aim of the interlaboratory comparisons was to determine the repeatability and reproducibility of both analytical methods to be standardized. This was an important contribution to the practical applicability of both draft standards. Eight laboratories participated in the interlaboratory comparison with ETV ICP OES and nine in the interlaboratory comparison with DC arc OES. Ten analytes were investigated by ETV ICP OES and eleven by DC arc OES. Six different SiC powders were used for the calibration. The mass fractions of their relevant trace elements were determined after wet chemical digestion. All participants followed the analytical requirements described in the draft standards. In the calculation process, three of the calibration materials were used successively as analytical samples. This was managed in the following manner: the material that had just been used as the analytical sample was excluded from the calibration, so the five other materials were used to establish the calibration plot. The results from the interlaboratory comparisons were summarized and used to determine the repeatability and the reproducibility (expressed as standard deviations) of both methods. The calculation was carried out according to the related standard. The results are specified and discussed in this paper, as are the optimized analytical conditions determined and used by the authors of this paper. For both methods, the repeatability relative standard deviations were <25%, usually ~10%, and the reproducibility relative standard deviations were <35%, usually ~15%. These results were regarded as satifactory for both methods intended for rapid analysis of materials for which decomposition is difficult and time-consuming. Also described are some results from an interlaboratory comparison used to certify one of the materials that had been previously used for validation in both interlaboratory comparisons. Thirty laboratories (from eight countries) participated in this interlaboratory comparison for certification. As examples, accepted results are shown from laboratories that used ETV ICP OES or DC arc OES and had performed calibrations by using solutions or oxides, respectively. The certified mass fractions of the certified reference materials were also compared with the mass fractions determined in the interlaboratory comparisons performed within the framework of method standardization. Good agreement was found for most of the analytes.