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GEOPIG
ICP-MS Facility
Our ICP-MS facility is equipped with Thermo
Fisher ELEMENT 2 high resolution inductively coupled plasma mass
spectrometry (HR-ICP-MS), CEM Mars5 microwave digestion system and a clean
laboratory for sample preparation.
Capability
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The HR-ICP-MS is a double focusing magnetic
sector mass spectrometry designed to resolve polyatomic interferences from
the analytes. It is used to measure total concentrations of trace
elements, some rare earth elements and some major element. Typical
detection limits of ppb (mg/L).
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Currently, the ICP-MS is set up for aqueous samples. Most samples in our
laboratory are natural waters including groundwater and water samples from
rivers, lakes and hot springs.
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Solid and liquid samples can be digested with CEM Mars5 microwave
digestion system prior to analysis. We have had experience with dissolving soil, sediment,
rock, oil, plastic, lichen and air particulate samples.
Quality Assurance and Quality Control (QA/QC) is maintained by
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Certified reference materials
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Procedure and laboratory blanks
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Duplicate and/or standard spikes
Sample Requirement
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Water samples: Minimum sample volume needed is typically 5 ml. The samples
must be filtered with 0.2-0.45
μm filter (polyethersulfone or PES membrane preferred), and
preserved with trace metal grade nitric acid (final pH<2).
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Solid samples: Minimum sample weight is typically 1 g. The samples should
be homogeneous and ground.
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Samples should be stored in acid washed polyethylene containers. Glassware should be
avoided.
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Please provide the following information before submitting samples: volume and number of samples,
sample matrix, total dissolved solid (TDS) or conductivity, prior
pretreatment of samples (if applicable), expected concentration ranges of
elements of interest.
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