Syringe, peristaltic, vacuum: which lab pump do you need?
Four kinds of lab pump, four completely different jobs. Buying the wrong one is the most common mistake we see in used lab equipment.
Blog · Category
Buying guide
What an HPLC actually does, and why labs have so many
HPLC is how a lab finds out what is in a liquid and how much. It is the workhorse of analytical chemistry, which is why used modules are everywhere.
How to buy a used HPLC module without getting burned
Agilent 1100 and 1200 modules are the most available used lab instruments on earth. Here is what actually determines whether one is worth buying.
What kills a surplus lot before you even bid
Most surplus lots that look like bargains are traps. Here are the failure modes we have learned to spot from the listing photos alone.
What an atomic force microscope actually does
An AFM does not use light. It feels the surface with a needle a few atoms wide. Here is how it works, what it is used for, and who buys one.
How we decide what to bid on
Surplus auctions move faster than any person can read them. Here is how we filter thousands of lots down to the few worth bidding on, and where we stop.