Trace elemental analysis
Chemical elements constitute all of the ordinary matter in the universe. Of the 118 elements that have been identified, 94 are found naturally on Earth, having either stable or unstable isotopes.
Because all matter differs in its elemental composition, it also differs in its chemical properties. Knowing the compositions or concentrations of elements in a given material can reveal several qualities about that material; e.g., geographic origin, product quality, process operation. Given its name, trace elemental analysis (TEA) inherently deals with the determination of small amounts of chemical elements; these small amounts often span a wide concentration range (e.g., 0.1% in rock composition, parts per trillion in semiconductor-grade chemicals).
Because it covers the analysis of elements, TEA is an integral discipline in understanding the natural world. As such, TEA can be applied to a wide variety of fields including environmental monitoring, pharmaceutical testing, food safety, geochemistry, petrochemistry, metallurgy, toxicology, forensics, and many other disciplines.
In this section, you will:
- Learn which TEA instruments and technologies are ideally suited to elemental sample analysis
- Find out when and why atomic absorption spectrometry (AAS), inductively coupled plasma optical emission spectroscopy (ICP-OES) are used to collect information about certain elements
- Understand how AAS, ICP-OES, and ICP-MS data are acquired and which techniques are regularly applied during the collection and processing of these data
- Find out which critical factors, including spectral interferences and physical interferences, must be considered during sample preparation for trace elemental analysis
Learn how GC can be coupled to ICP-MS for ultratrace tin speciation to determine TBT.
Understand how AA spectrometry is applied to the detection of trace levels of mercury in fish.
TEA information subtopics
Learn how AA spectrometry can be a cost-effective analysis technique for sequential elemental determination using either flame or furnace analysis.
Discover the superior detection capabilities of ICP-MS for simple and complex matrices, including those containing rare earth metals, along with its ability to characterize organic and inorganic samples at ppm to sub-ppt levels.
Understand the ways in which ICP-OES enables robust multi-element analysis for a range of matrices, along with a broad (% to sub-ppb) dynamic range.
Access our extensive collection of workflows, scientific applications, technical handbooks, posters, and webinars on spectroscopy, elemental, and isotope analysis.