What sample volume is required for TO-15 analysis?
Nutech 8910 Preconcentrator support 4–2000 mL or even lower volumes with loop injection. Larger volumes improve detection limits but increase analysis time.
What detection limit can a TO-15 preconcentrator achieve?
Nutech 8910 achieves detection limits down to 0.01 ppbv (ppt level), depending on sample volume and GC-MS configuration. This is enabled by high enrichment factors (>1000×) and cryogenic trapping.
How does a TO-15 preconcentrator work?
A TO-15 preconcentrator uses a three-stage cryogenic trapping system:Trap 1 removes moisture, Trap 2 concentrates VOCs while removing CO₂ and air components, and Trap 3 performs final cryofocusing before GC injection. This staged design ensures high sensitivity and sharp peak shapes.