How can you identify plasma from FTIR?
This page summarizes the recurring FTIR evidence reported for plasma, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 10 cited sources
Quick answer
plasma is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Peak interpretation
Possible materials / groups
| Kumpulan berfungsi | Bukti |
|---|---|
| Amide | 24 |
| Alkyl C-H | 11 |
| Carboxyl (COOH) | 6 |
| Phosphate (PO4) | 6 |
| Methacrylate | 5 |
| Acetate | 5 |
| Protein | 5 |
| Methyl | 4 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of plasma, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
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Depciuch 等 - 2022 - EFFECT OF HIGH BLOOD CORTISOL CONCENTRATION ON THE DOI: 10.21203/rs.3.rs-228476/v1 -
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Erahimovitch 等 - 2006 - FTIR spectroscopy examination of leukemia patients DOI: 10.1016/j.vibspec.2005.06.004 -
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New approach to investigate Common Variable Immunodeficiency patients using spectrochemical analysis of blood DOI: 10.1038/s41598-019-43196-5 -
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Monitoring of Peripheral Blood Leukocytes and Plasma Samples: A Pilot Study to Examine Treatment Response to Leflunomide in Rheumatoid Arthritis DOI: 10.3390/ph14020106 -
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Singh 等 - 2010 - Spectroscopic techniques as a diagnostic tool for DOI: 10.1007/s12206-010-0524-z -
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Araujo 等 - 2022 - Plasma versus Serum Analysis by FTIR Spectroscopy DOI: 10.3390/biotech11040056 -
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Vibrational Spectroscopy of Liquid Biopsies for Prostate Cancer Diagnosis DOI: 10.1177/1758835920918499 -
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ATR-FTIR spectroscopy of plasma supported by multivariate analysis discriminates multiple sclerosis disease DOI: 10.1038/s41598-023-29617-6 -
plasma
Petibois 等 - 2004 - Determination of stress-induced changes in plasma DOI: 10.1002/bip.20002 -
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Early detection of breast cancer using total biochemical analysis of peripheral blood components: a preliminary study DOI: 10.1186/s12885-015-1414-7
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