Been evaluating process Raman options for a while and frustrated by how hard it is to find a clear picture of who does what. Most resources are either vendor whitepapers or academic papers — nothing that just maps the competitive landscape by application.
So I started building one. Sharing the first chunk here and hoping the community can fill in the gaps or correct me where I'm wrong.
Bioprocess / Fermentation monitoring (glucose, lactate, cell density, metabolites in CHO/E. coli/yeast bioreactors) Kaiser/E+H · MarqMetrix · Bruker/Tornado · HORIBA · Gekko Photonics · Wasatch Photonics
API Crystallization & polymorph monitoring (supersaturation tracking, form transitions during cooling crystallization) Kaiser/E+H · Mettler Toledo (ReactRaman) · MarqMetrix · Bruker/Tornado · HORIBA
Pharma blend uniformity (inline powder monitoring during continuous or batch blending) Kaiser/E+H (PhAT probe) · MarqMetrix · Bruker/Tornado · Metrohm
Polymerization reaction monitoring (monomer conversion, copolymer composition, endpoint detection) Kaiser/E+H · Gekko Photonics · Mettler Toledo · HORIBA · Bruker/Tornado · Metrohm
Petrochemical / refinery streams (naphtha, gas oil, aromatics, sulfur content) HORIBA · Kaiser/E+H · Gekko Photonics · Bruker/Tornado · Metrohm
🙏🙏🙏 A few things I'm genuinely uncertain about:
- Mettler Toledo seems strong in pharma crystallization but I rarely see them mentioned in bioprocess — is that accurate?
- Is MarqMetrix's BallProbe as dominant in fermentation as it seems, or is that just marketing visibility?
- Any experience with probe fouling or calibration stability across vendors in these applications?
Planning to add semiconductor, food & beverage, and continuous pharma manufacturing in a follow-up post once I get more data.
Disclosure: I work in the chemical industry with Raman spectrometers, so I have some context here — but genuinely trying to map the whole space, not push any single vendor.