Positive Material Identification (PMI)

Optical Emission Spectroscopy (OES) is a method that uses electrical energy to excite atoms in a sample, causing them to emit light at characteristic wavelengths.

• High Accuracy: OES provides highly accurate and precise analysis of elemental composition, including trace elements
• Wide Element Range: It can detect a broad range of elements, including those in low concentrations, making it ideal for comprehensive material verification
• Versatility: OES is suitable for a variety of materials, including metals and alloys
• Rapid Analysis: OES provides quick results, which is beneficial for real-time decision-making in the field
• Portable Equipment: Modern portable OES devices are designed for field use, allowing for on-site material verification
• Elements Detected: Al, Sb, Ba, Be, Bi, B, Cd, Ca, C, Ce, Cr, Co, Cu, Ga, Au, Hf, Fe, La, Pb, Li, Mg, Mn, Mo, Ni, Nb, P, K, REEs, Si, Ag, Na, Sr, S, Ta, Te, Tl, Sn, Ti, W, V, Y, Zn, Zr

Laser-Induced Breakdown Spectroscopy (LIBS) uses a focused laser pulse to create plasma on the sample surface, which emits light that is analyzed to determine the elemental composition.

• Rapid Results: LIBS offers real-time analysis, providing almost instantaneous results for material verification
• Minimal Sample Preparation: Little to no sample preparation is required, enhancing efficiency and reducing downtime
• Versatility: LIBS can analyze a wide range of elements and is effective on various materials, including metals, ceramics, and plastics
• Portable and Lightweight: Handheld LIBS devices are portable and lightweight, making them convenient for field inspections
• Surface and Sub-Surface Analysis: LIBS can analyze both surface and sub-surface elements, offering a more comprehensive assessment
• Elements Detected: Al, Ba, Be, B, Ca, C, Cr, Co, Cu, Au, H, Fe, Pb, Li, Mg, Mn, Mo, Ni, N, O, P, K, Si, Na, Sr, S, Sn, Ti, W, U, V, Zn

X-ray Fluorescence (XRF) involves directing X-rays at a sample, causing it to emit fluorescent X-rays that are characteristic of the elements present in the material.

• Non-Destructive: XRF is a non-destructive testing method, preserving the integrity of the sample
• Ease of Use: XRF devices are user-friendly and require minimal training to operate
• High Sensitivity: XRF provides highly sensitive detection of elements, including low concentration trace elements
• Wide Range of Materials: It is suitable for analyzing metals, alloys, soils, and other materials
• Portable Devices: Handheld XRF analyzers are available for on-site testing, making them ideal for field use
• Elements Detected: Al, Sb, Ba, Be, Bi, Br, Cd, Ca, Ce, Cl, Cr, Co, Cu, Dy, Er, Eu, F, Gd, Ga, Ge, Au, Hf, Ho, In, I, Ir, Fe, La, Pb, Mg, Mn, Hg, Mo, Nd, Ni, Nb, Pd, P, Pt, K, Pr, Re, Rh, Rb, Ru, Sm, Sc, Se, Si, Ag, Na, Sr, S, Ta, Te, Tb, Tl, Th, Sn, Ti, W, U, V, Yb, Y, Zn, Zr

Integrating PMI using OES, LIBS, and XRF into industrial processes offers several key benefits:

• Enhanced Inspection Capabilities: The ability to use different PMI methods ensures comprehensive material verification, covering a wide range of elements and materials
• Increased Efficiency: Portable and rapid testing methods reduce the time and cost associated with sample transportation and laboratory analysis. On-site verification allows for immediate decision-making and corrective actions
• Improved Accuracy and Compliance: High precision and sensitivity of these methods ensure accurate material verification, which is essential for meeting stringent industry standards and regulatory requirements
• Non-Destructive Nature: Both XRF and LIBS are non-destructive, allowing for material assessment without damaging the sample, preserving its usability and integrity
• Customization of Testing Parameters: PMI equipment often allows for customization of testing parameters to meet specific operator and industry requirements. This flexibility ensures that the testing process is tailored to the unique needs of different applications
• Real-Time Results: The ability to obtain real-time results with LIBS and OES enhances the decision-making process, allowing for immediate verification and adjustment if necessary.
• Surface Preparation: Both OES and LIBS may require surface preparation to remove the decarbonized layer of material or remove any surface contaminations.