Unknown Contaminant Identification
Identify a particle, residue, film, fiber, deposit, or mixed material before testing source hypotheses.
Process contamination and failure-analysis services
Process-contamination and material-failure investigations start with the production problem: what changed, where it occurred, which samples represent the expected condition, and which decisions the analytical evidence must support. Triclinic designs the work around the failure mode instead of applying a fixed list of tests.
Projects may involve discolored dip or wash tanks, unexpected residues, deposits, process-fluid changes, suspect raw materials, equipment-contact materials, failed batches, or differences between a collected sample and the expected virgin material. Orthogonal methods help distinguish composition, physical form, and source consistency without overstating what the evidence proves.
- Compare suspect samples with virgin materials, acceptable lots, make-up solutions, or reference standards.
- Identify residues, corrosion-related material, deposits, foreign particles, films, fibers, or chemical changes.
- Evaluate whether evidence is consistent with equipment, cleaning agents, raw materials, process fluids, contact materials, or environmental sources.
Evidence for Process Contamination and Material Comparisons
Source investigations are strongest when the suspect sample is tested alongside realistic references. Those may include virgin process material, an acceptable tank or lot, cleaning agents, hoses, seals, filters, corrosion products, wipes, packaging, and environmental materials.
Microscopy and spectroscopy can identify an unknown material class, while elemental mapping, diffraction, chromatography, or mass spectrometry can add evidence needed to compare a sample with a suspected source. The result may confirm a match, exclude a candidate, or define the remaining uncertainty.
Typical investigation deliverables
- Documentation of the samples, visible differences, and analytical sequence.
- Suspect-versus-virgin, acceptable-lot, or source-candidate comparisons.
- Identification or classification of residues, deposits, particles, phases, elements, or chemical differences.
- Interpretation of which source hypotheses are supported, inconsistent, or unresolved.
- Clear limitations and recommended follow-up work when the evidence is not conclusive.
Analytical capabilities commonly used for this work
| Technique or platform | Information produced | Why it matters |
|---|---|---|
| Optical and digital microscopy | Visual morphology, dimensions, surface features, color, layering, and sample-selection context. | Documents the evidence before destructive testing and helps select specific particles or regions for analysis. |
| Raman microscopy and chemical mapping | Molecular fingerprints and spatial distribution of many APIs, excipients, pigments, polymers, and crystalline components. | Useful for suspect-versus-authentic comparisons, coating/core analysis, layered systems, and localized unknowns. |
| FTIR and IR microspectroscopy | Polymer, organic, excipient, adhesive, fiber, film, and residue identification. | Often strong for particles, fibers, packaging materials, cap liners, label adhesives, and contact-material comparisons. |
| SEM/EDX | High-resolution morphology plus elemental composition and elemental maps. | Critical for inorganic particles, fillers, talc-related signals, metals, corrosion, pigments, and source comparisons. |
| LC/MS, GC/MS, chromatography, NMR, or ICP-MS | Targeted or investigative molecular, volatile/semi-volatile, structural, or trace-element information. | Added when direct microanalysis is not enough or when confirmation, quantitation, or structural assignment is required. |
Related contaminant and impurity services
Pharmaceutical Root Cause Investigations
Investigate pharmaceutical deviations, out-of-specification results, batch failures, and product-quality questions.
Elemental Quantification
Compare elemental evidence with raw materials, equipment, corrosion products, catalysts, and environmental sources.
Trace Level Analysis
Design sampling, blank, and sensitivity controls when a suspected contaminant is sparse or matrix-interfered.
Frequently Asked Questions about Process Contamination and Failure Analysis
Can Triclinic compare a suspect process sample with virgin material?
Yes. Suspect samples can be compared with virgin material, acceptable lots, make-up solutions, cleaning agents, contact materials, and other realistic source candidates. The plan is selected for the sample matrix and the decision the comparison must support.
Can you investigate discoloration in process or wash tanks?
Yes. Provide representative tank samples, expected or virgin material, cleaning and process history, and suspected sources. Microscopy, spectroscopy, elemental analysis, diffraction, chromatography, and mass spectrometry may be combined as appropriate.
What samples help a manufacturing failure investigation?
Provide failed and acceptable samples, virgin or target material, photographs, sampling locations, process and cleaning history, equipment-contact materials, prior data, and realistic source candidates whenever available.
Will the report identify a confirmed root cause?
The report states what the evidence confirms, supports, excludes, or leaves unresolved. A source is not labeled as the root cause unless the analytical evidence and available process context support that conclusion.
Discuss a process contamination or material failure
Share the process problem, sampling locations, suspect and acceptable materials, virgin or reference samples, photographs, prior data, timing, and the source hypotheses the investigation must test.