Preserving Phytoplankton Samples with Glutaraldehyde for FlowCam Analysis

When you need Trigger mode later, you need pigment fluorescence to survive storage. This technical note shows how to preserve phytoplankton samples with glutaraldehyde under refrigeration—so you can still differentiate cyanobacteria from other algae when you run them on FlowCam Cyano.

What's inside:

• Step-by-step prep for glutaraldehyde-preserved aquatic samples
• Results from Anabaena and Gloeocapsa cultures stored 30 days at ~4 °C
• How preservation keeps Trigger mode concentration, chlorophyll, and phycocyanin fluorescence stable
• A no-preservative option: what refrigeration alone gets you (about a week)
• Practical notes on FlowCam Cyano / 8400 setup, dosing, and safe disposal

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