Multiwave 7101/7301/7501 Series Vials - Trace Element Blank Values Measured by ICP-OES and ICP-MS
In trace elemental analysis it is necessary to keep blank values as low as possible considering that all sources of systematic errors in sample decomposition should be minimized. The purpose of this report is to give an overview of the potential amount of trace elements coming from quartz vials, PTFE-TFM vials, disposable borosilicate glass vials or sealed quartz vessels.
The success of a trace elemental analysis substantially depends on the appropriate reaction vessel used in the sample preparation step. It is the heart of any digestion system and, for microwave reaction systems, typically needs to fulfil the following properties:
- High purity
- Resistance against pressure, temperature and corrosive reagents
Different sources of systematic errors in sample decomposition have to be taken into account by every lab offering trace or ultra-trace element analysis. Beside incomplete decomposition and losses of elements, the contamination by the vial materials themselves shall be taken into consideration.
The knowledge of the particular vial-specific trace element values can be obtained by doing blank digestions. In this report the trace values of 29 elements in digested blank samples were measured with ICP-MS or ICP-OES.
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