Recent Blogs

Most “mystery” HPLC problems — ghost peaks, clogged columns, drifting baselines — start at a $1 syringe filter. I’ve watched labs chase instrument faults for days when the real culprit was a membrane mismatch or a filter being forced past its limit. Here are the seven mistakes I see most

If you store reagents, buffers, or cell-culture media, the bottle you choose quietly decides how long those liquids stay usable. I’ve spent years helping labs pick reagent and media bottles, and the honest truth is that most contamination, evaporation, and “my media went bad” problems trace back to a bottle

If you run a GC, you’ll eventually get asked “can headspace do this?” The answer is almost always yes — and the list of things headspace GC handles well is longer than most people think. Residual solvents in pills, VOCs in soil, alcohol in blood, off-flavors in juice — these

Walk up to any media-bottle shelf and you’ll see two almost identical-looking borosilicate bottles — one with a plain blue screw cap, one with a blue cap plus a soft blue ring sitting on the neck. Both are GL45. Both will hold 500 mL of buffer. But the second one

Filter diameter is the one decision most labs get wrong. People agonize over membrane material and pore size, then grab whatever filter happens to be on the bench. Six months later they’re losing 30% of every sample to hold-up or watching 25 mm filters clog halfway through the prep. Picking

Headspace vials look like ordinary GC vials with one annoying twist: the septum is doing a lot more work. It has to seal against pressure, survive incubation at high heat, and let a needle through hundreds of times without leaking. If you reach for whatever cap is on the shelf,