Why Septa Thickness Matters for Injection
Pick up any two caps from your lab drawer and the septa probably look identical.
PP vs Aluminum Caps: Which Should You Use?
The vial gets all the attention, but the cap is doing half the work. Choose a polypropylene screw cap when you want a resealable, tool-free closure that’s…
How Often Should You Replace Your Septa?
Every lab has that one box of caps sitting in a drawer, used and re-used until the septa looks like a pincushion. I’ve been guilty of it myself.
What Does 9-425 Mean on a Vial?
If you’ve ever ordered autosampler vials, you’ve probably stared at a spec sheet that reads “2 mL, 12 x 32 mm, 9-425 screw thread” and wondered what that…
Conical vs Flat Bottom Vials: What’s the Difference?
Here’s a scene I see in labs all the time: a researcher runs out of sample with a 100 µL aliquot sitting unreachable at the bottom of a standard flat-bottom…
How to Fill a Vial Without Introducing Bubbles
Ever watched your peak areas swing by ten percent run after run and blamed the pump? Before you touch the instrument, check the vials.