Qualitative Chemistry

Elemental Composition Analysis, Material Identification & More

Elemental Composition AnalysisQualitative chemistry methods are offered by Laboratory Testing Inc. for composition analysis and material identification. Qualitative testing can provide many types of helpful information about the make-up of the test sample, including:

  • Revealing individual elements or groupings of elements
  • Detecting impurities or contaminants
  • Identifying the material and its components

Let LTI Analyze Your Samples

LTI can deliver the answers you need with the qualitative test services performed by our Chemistry Lab near Philadelphia, PA (USA). Although our chemistry team can obtain results using a number of instrumental and wet chemistry methods, the most appropriate qualitative test for each analysis will depend on the size, shape and intended future use of the sample, as well as the depth of information required about the sample.

Most often, the sample is a complex mixture and will requires a thorough composition analysis in order to identify all components. Only a few qualitative test methods are nondestructive, which leave the sample intact for future use.

Ask our team for help in selecting the most appropriate service.

Help With Important Business Decisions

The information and results generated during qualitative chemical analysis provide valuable input for many business decisions, including:

  • Selection or verification of materials
  • Determining if a material conforms to a standard or specification
  • Uncovering the root cause of material failures

LTI Qualitative Chemistry Capabilities

Laboratory Testing Inc. offers a variety of qualitative chemistry methods for composition analysis, material identification and impurity detection, including the following:

  • ICP Atomic Emission Spectroscopy (ICP-AES)
  • ICP Mass Spectrometry Analysis (ICP-MS)
  • Energy Dispersive Spectroscopy (EDS)
  • Fourier Transform Infrared Spectroscopy (FTIR)
  • Portable X-Ray Fluorescence Spectroscopy / Positive Material Identification (PMI)
  • Carbon/Sulfur/Nitrogen/Oxygen/Hydrogen Determination
  • Classical Wet Chemistry


  • ASTM E1252
  • ASTM E1476
  • ASTM E1508
  • MIL Specifications

Qualitative Test Processes

ICP Analysis

Both ICP-AES and ICP-MS are performed at LTI with equipment that can measure the whole spectrum necessary for the analysis of all the common metal bases.

Elemental analysis and material identification are provided by high-resolution, high-sensitivity ICP-AES spectrometers that can analyze 70 elements in the periodic table. ICP-MS analysis offers routine testing for trace elements in super alloys and provides ultra-trace elemental analysis for high purity alloys. ICP-MS spectrometers analyze most elements in the periodic table.

Energy Dispersive Spectroscopy (EDS)

During Energy Dispersive X-ray Spectroscopy, a detector separates the X-rays of different elements into an energy spectrum with peaks indicating more abundant elements. EDS can find the elemental composition of a wide variety of materials down to a spot size of a few microns. Laboratory Testing’s EDS system is integrated into a scanning electron microscope (SEM) which provides the ability to view very small areas on samples and generate high-resolution images. Combining the EDS system with the SEM allows the identification, at microstructural level, of compositional gradients at grain boundaries, second phases, impurities, inclusions, and small amounts of material. The SEM/EDS unit can be used to produce maps of element location, concentration, and distribution.

Fourier Transform Infrared Spectroscopy (FTIR)

Fourier Transform Infrared Spectroscopy (FTIR) is the process used to analyze many organic materials, including plastics and other polymers using an absorption spectrum. FTIR can provide qualitative test information about the molecular structure of the material and chemical bonds.

Portable X-Ray Fluorescence Spectroscopy

A portable X-Ray Fluorescence Spectroscopy unit provides instant element analysis and alloy identification, and is used to provide Positive Material Identification services at LTI. The PMI analysis is performed with a handheld tube-based analyzer that does not alter or damage the test material. This test method is used to verify elemental composition of material and of filler material in welding applications and is also known as a PMI Test.

Contact us for a price to complete your chemical analysis order.

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“I wanted to take the time to personally thank you for the time and effort that LTI has put into the testing involved with our orders. Your staff has been invaluable over the last several years. Additionally, the fact that you are now able to perform Fracture Toughness testing in house has already proven priceless in both the turnaround time and in getting my questions answered. I’ve been fortunate to have worked with LTI since 1986 and I have come to think of LTI as an extension of Dubose. I look forward to our continued relationship.”

Dave Stepp,
Quality Assurance Manager


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