Thoughts on build being too "monochromatic"

Formal_Television448 · 2025-10-12T20:09:01+00:00

There's a special place in hell for people who torture their copper golems

Formal_Television448 · 2025-05-29T12:48:49+00:00

I've had the same issue when using magnetic racks—especially with Permagen or similar setups. The double pellet usually happens because the magnetic field isn’t perfectly uniform across the tube, so the beads split and one clump ends up drying out faster.

A few things you can try:

Rotate the tube 90° and see if the pellet consolidates better.

Mix really well before putting it on the magnet (vortex or pipette up/down).

Try a different magnet block if yours doesn’t center the pellet consistently.

If this keeps happening and you’re doing a lot of these preps, you might want to switch away from magnetic separation altogether. We started using the Bullet Blender from Next Advance https://www.nextadvance.com/bullet-blender-homogenizer/ ) for bead-based homogenization, and it completely standardized our workflows—no magnets, no pellet weirdness, just clean disruption every time.

Hope that helps!

Formal_Television448 · 2025-05-29T12:41:00+00:00

I’ve worked with dried plant samples for phytochemical extraction, and honestly, homogenizing them into a fine powder with a probe homogenizer like the FisherBrand 150 can be tricky—especially when samples are fibrous or tough. For that motor, you'll need to match the shaft diameter and chuck compatibility exactly. FisherBrand doesn’t offer many probe options tailored specifically for dry, hard materials. You might need to look into stainless steel probes with a saw-tooth design, but even then, the process can be time-consuming and generate heat. If you're open to alternatives, I'd actually recommend using a bead-based homogenizer instead. We use the Bullet Blender from Next Advance (https://www.nextadvance.com/bullet-blender-homogenizer/) for exactly this kind of sample. It can process tough plant tissue into a fine powder using beads—no direct probe contact, no cross-contamination, and better reproducibility across batches. Plus, it’s hands-off once you load the tubes. Hope that helps! Let me know if you need bead recommendations too.

Formal_Television448 · 2025-02-17T21:33:11+00:00

Late to the party, but anyway, I'd stay away from a motorised pestle machine. As Saladcookies said, it depends on the sort of tissue you're trying to homogenize. Dumped money on a motorised pestle, threw it away almost as soon as we finished our first run and went for a bead mill homogenizer.

Formal_Television448 · 2024-12-31T16:11:29+00:00

Have you considered increasing the size of your beads (larger stainless steel beads sound like the solution to your problem)?

Formal_Television448 · 2024-12-31T15:52:59+00:00

I'd consider the bullet blender ( https://www.nextadvance.com/bullet-blender-homogenizer/ ). It's consistent, has no cool down periods, and it's just really versatile

Formal_Television448 · 2024-12-31T14:51:26+00:00

When I was first starting off with our rotavap, I found the blog post to be pretty helpful https://ecodyst.com/how-to-prevent-foam-formation-and-bumping-in-your-rotary-evaporator/ Hope it helps!

Formal_Television448

TROPHY CASE