Direct method for Ra-226 analysis in water samples using ICP-QQQ-MS.
Fuente:
PubMed
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Scientific reports
2026
|
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1868266095189688322 |
|---|---|
| author | Coha, Ivana Štrok, Marko Kavasi, Norbert |
| author_facet | Coha, Ivana Štrok, Marko Kavasi, Norbert Coha, Ivana Štrok, Marko Kavasi, Norbert |
| collection | PubMed - marine biology |
| contents | Direct method for Ra-226 analysis in water samples using ICP-QQQ-MS. Coha, Ivana Štrok, Marko Kavasi, Norbert The paper describes a method of determination of Ra-226 in natural water using ICP-QQQ-MS, Agilent 8900, that enables an efficient direct determination of Ra-226 with high sensitivity without using any reaction gas and separation procedures for interference removal. The matrix effect, together with the instability of the sensitivity are controlled by spiking the sample with Ra-226. The method is simple and fast with a detection limit around of 0.1 fg g (3.6 mBq kg), which is tenfold lower than required by the EU Directive for water consumption (40 mBq kg) and five times better than results obtained from alternative direct method for routine analysis described in the literature. The method can easily be implemented for routine analysis Ra-226 which was demonstrated by direct determination of Ra-226 in IAEA proficiency test water sample. This is the first time that the accuracy (trueness and precision) of a mass spectrometry method for the direct determination of Ra-226 has been tested and confirmed in an independent proficiency test. |
| format | Artículo científico |
| id | pubmed_41571680 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Scientific reports |
| record_format | pubmed |
| spellingShingle | Direct method for Ra-226 analysis in water samples using ICP-QQQ-MS. Coha, Ivana Štrok, Marko Kavasi, Norbert Direct method for Ra-226 analysis in water samples using ICP-QQQ-MS. Coha, Ivana Štrok, Marko Kavasi, Norbert The paper describes a method of determination of Ra-226 in natural water using ICP-QQQ-MS, Agilent 8900, that enables an efficient direct determination of Ra-226 with high sensitivity without using any reaction gas and separation procedures for interference removal. The matrix effect, together with the instability of the sensitivity are controlled by spiking the sample with Ra-226. The method is simple and fast with a detection limit around of 0.1 fg g (3.6 mBq kg), which is tenfold lower than required by the EU Directive for water consumption (40 mBq kg) and five times better than results obtained from alternative direct method for routine analysis described in the literature. The method can easily be implemented for routine analysis Ra-226 which was demonstrated by direct determination of Ra-226 in IAEA proficiency test water sample. This is the first time that the accuracy (trueness and precision) of a mass spectrometry method for the direct determination of Ra-226 has been tested and confirmed in an independent proficiency test. |
| title | Direct method for Ra-226 analysis in water samples using ICP-QQQ-MS. |
| url | https://pubmed.ncbi.nlm.nih.gov/41571680/ |