Inductively Coupled Plasma Mass Spectrometry (ICP-MS) provides extremely high sensitivity analysis for almost every element excluding C, H, O, N and the Halogens. Results are given quantitatively from the ppt to the wt% range for every element present in the sample. Preparation for solid samples is following: sample is digested or dissolved usually in an acidic aqueous solution.
In ICP-MS analysis high temperature argon plasma is ionizing elements and the ions are separated by their mass to charge ratios. Then the number and masses of ions are counted.
Main Applications of XRD Analysis
- Elemental content from :
natural-, sewage-, process-, household waters etc.
Soluble solid sample types
Ideal Uses
- Quantitative bulk survey analysis of major, minor and trace elements
- High accuracy detection of major and minor elements in a large variety of materials
- Quality and process control
Strengths
- Large amount of elements can be covered with a single analysis
- Automated measurement increases accuracy, precision and throughput
Limitations
- The sample must be completely dissolved
- In the mass spectra, common matrix elements and other molecules can interfere measurement of some elements.
- Emission spectra could be complex and elemental interferences are possible if the mass number of the element is very close to that of another element
- Multiply charged or polyatomic ionic species can cause difficulties in quantification
Technical Specifications
- Signal Detected: Ions
- Detection limits: <ppb
- Elements Detected: Up to 70 elements
Applications
- Waters: natural, sewage, process, household
- Chemicals
- Food
- Metal alloys