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.
What sample volume range does the 8910CF support?
The system supports a wide sample volume range for different analytical requirements. When equipped with a sampling loop, the minimum sample volume can be extended down to 0.1 mL. This gives users greater flexibility in method development, routine analysis, and applications where sample volume needs to be carefully controlled.
Is the 8910CF compatible with different GC or GC-MS systems?
Yes. The 8910CF is designed to be compatible with mainstream GC and GC-MS systems. This makes it easier to integrate into existing laboratory workflows without requiring users to rebuild the entire analytical platform. It also helps laboratories protect their existing instrument investment when adding preconcentration capability.
Can the 8910CF be used with an autosampler?
Yes. The 8910CF can operate either as a standalone preconcentrator or as part of an automated system with autosamplers. This supports higher sample throughput, reduces manual handling, and helps maintain more consistent operation in routine laboratory analysis. It is a useful configuration for laboratories processing larger numbers of samples.
What sample containers can be used with the 8910CF?
The 8910CF can be used with canisters and sampling bags. It can also be integrated with autosamplers for automated analysis of multiple canister samples. This gives laboratories more flexibility in sample introduction and makes the system suitable for both manual and higher-throughput workflows.
How sensitive is the 8910CF?
The system provides ppt-level sensitivity for trace VOC analysis. This level of sensitivity is important for applications in which target compounds are present at very low concentrations and cannot be measured reliably by direct sample introduction alone. Combined with preconcentration, it supports more confident low-level VOC determination.
Does the 8910CF require liquid nitrogen?
No. The 8910CF uses electronic cooling technology instead of liquid nitrogen for trap cooling. This simplifies routine operation, reduces dependence on cryogen supply, and lowers the burden of day-to-day system management. For many laboratories, it also makes installation and routine use more convenient.
How does the 8910CF handle moisture and matrix interference?
The 8910CF uses an integrated three-stage trap design with CO₂ and H₂O management technology. The first-stage trap functions as a moisture removal trap, helping reduce interference from water and major air components during trace VOC analysis. This is especially important for real air samples, where moisture and matrix effects can reduce method stability and affect