488 nm fluorescence: instrument and assay questions
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Yenra | Prepared September 19, 2026
Companion guide: https://yenra.com/blue-laser/

Use with a laboratory specialist or instrument engineer. Copy values with their units and source documents. This sheet supports specification review, not laser alignment, servicing or an assay protocol. Follow the laboratory safety program and validated method.

Keep the completed record privately. This file has no form submission or data collection.

1. Biological question, sample and approved assay or method:
   ____________________________________________________________

2. Fluorophore identity, conjugate and preparation context:
   ____________________________________________________________

3. Excitation spectrum reference and proposed source wavelength in nm:
   ____________________________________________________________

4. Emission spectrum reference and detection band in nm:
   ____________________________________________________________

5. Other labels and possible spectral overlap:
   ____________________________________________________________

6. Instrument model and validated source/detector configuration:
   ____________________________________________________________

7. Optical power specification in mW and where it is defined:
   ____________________________________________________________

8. Stability, beam delivery and service requirements from the manufacturer:
   ____________________________________________________________

9. Controls and QC criteria specified by the method:
   ____________________________________________________________

10. Changes between measurements that must be recorded:
   ____________________________________________________________

11. Laser classification, responsible safety lead and approved service route:
   ____________________________________________________________

12. Outstanding evidence, decision owner and review date:
   ____________________________________________________________

Source context: use the companion guide and the following primary references to clarify terminology. The responsible team must check current instructions and evidence for the exact equipment or treatment.
https://www.microscopyu.com/techniques/fluorescence/introduction-to-fluorescence-microscopy
https://documents.thermofisher.com/TFS-Assets/LSG/manuals/MAN1001821-AlexaFluorandAlexaFluorPlusReactiveEsters-UG.pdf
https://www.coherent.com/industrial-solutions/instrumentation/life-sciences1/flow-cytometry
https://www.fda.gov/radiation-emitting-products/home-business-and-entertainment-products/laser-products-and-instruments