🔬💧🟣

#biological stain #microscope stain #histology #gram stain #sample preparation #lab work

🔬💧

#laboratory research #sample preparation #micro bipette #small volume

🌪️🧪➡️⬇️⚫️➕💧

#centrifugation #density separation #pellet #supernatant #sedimentation #phase separation #sample preparation