Visar resultat 1 - 5 av 56 avhandlingar innehållade ordet ICP-MS.
Sammanfattning : An inductively coupled plasma mass spectrometry (ICP-MS) method for the determination of lead in blood plasma has been developed. The detection limit was below 0.1 microgram/liter, and the precision 5%. There was no significant difference between levels in plasma and serum. LÄS MER
Sammanfattning : In recent years, there has been a surge of interest in the direct dating of ore deposits using Re-Os geochronometer for the ore minerals themselves. Molybdenite has been or particular interest because it is a common ore mineral and is suitable for analysis by the Re-Os method due to relatively high concentration of both Re and Os. LÄS MER
3. Rapid analysis of actinide isotopes using quadrupole ICP-MS for emergency preparedness and environmental monitoring
Sammanfattning : Transuranium elements in the environment are mainly derived from nuclear weapons testing and the nuclear fuel cycle. Of growing concern are illicit nuclear trafficking and the threat of terror acts. LÄS MER
4. On the reliability of methods for the speciation of mercury based on chromatographic separation coupled to atomic spectrometric detection
Sammanfattning : This thesis deals with the reliability of methods for the speciation of mercury in environmental and biological samples. Problems with speciation methods that couple chromatography to atomic spectrometric detection and how to overcome the problems are discussed. LÄS MER
Sammanfattning : It has recently been demonstrated that platinum group elements (PGE) are released from automobile catalysts into the environment, raising concern over ecological and human health risks. However, there is still a lack of knowledge regarding the dispersion and transformation of PGE in the environment and it is therefore difficult to assess potential risks. LÄS MER