Nutech 8910CF Cryogen Free Preconcentrator
Nutech 8910CF Preconcentrator is a high-performance VOC preconcentration system designed for ultra-trace analysis of volatile organic compounds in air and gas samples. Utilizing advanced three-stage trap technology with integrated moisture and CO₂ management, the system delivers ppt-level sensitivity with detection limits as low as 0.01 ppbv and concentration ratios exceeding 1000:1.
Engineered for seamless integration with GC and GC-MS platforms, the 8910CF supports a wide range of standard methods including US EPA TO-14/14A, TO-15/15A, PAMS, Chine EPA HJ 759, HJ 1444 ect, enabling direct compliance without hardware modification. Its fully inert sample pathway, precise MFC-based volume control, and high-speed thermal desorption ensure excellent recovery, repeatability, and data accuracy even for reactive and polar compounds.
With flexible sampling volumes, broad compound coverage (from light VOCs to SVOCs), and compatibility with canisters, sampling bags, and autosamplers, the system is ideal for environmental monitoring, laboratory analysis, and industrial applications. Combined with intelligent automation features such as leak check, real-time monitoring, and TCP/IP control, the 8910CF delivers reliable, high-throughput operation with minimal maintenance.
Key Features
Advanced Three-Stage Trapping for Ultimate Sensitivity
The 8910CF utilizes an integrated three-stage trapping system with electronic cooling and advanced CO₂/H₂O management, enabling reliable ppt-level VOC analysis. With temperatures down to −30 °C and rapid heating up to 120 °C/s, the system ensures efficient trapping and fast desorption for superior analytical performance.
Pre-configured methods including US EPA TO-14, TO-15, TO-15A, PAMS, China EPA HJ 759 ect, allow immediate compliance without hardware modification. The system supports a wide range of compounds—from light VOCs to reactive species and SVOCs—across flexible sampling volumes from 4 to 2000 mL (expandable to 0.1 mL).
Ultra-Low Detection Limits with High Precision
With a concentration ratio exceeding 1000×, the 8910CF delivers detection limits down to 0.01 ppbv and excellent repeatability.
Fully inert-treated flow paths eliminate adsorption and carryover, ensuring high recovery and data integrity. The combination of vacuum sampling and MFC-based control enables accurate pressure measurement and true quantitative sampling.
Intelligent Automation and User-Friendly Software
The system is designed for automated, unattended operation with:
- Automatic leak check and reporting
- Real-time monitoring and data logging
- Intelligent error alarms
- Intuitive PC-based control interface
This minimizes operator intervention while ensuring consistent analytical performance.
Flexible Integration and System Compatibility
The 8910CF is fully compatible with mainstream GC and GC-MS systems, as well as canisters and sampling bags.
It can operate as a standalone unit or be integrated with autosamplers for high-throughput analysis. TCP/IP communication ensures stable connectivity and eliminates common USB communication issues.
Reliable Performance for Long-Term Operation
A modular internal design isolates sensitive components from temperature fluctuations and condensation, reducing failure rates and extending instrument lifetime.
This ensures consistent performance even under demanding, high-throughput conditions.
Low Operating Cost and Easy Maintenance
The optimized trap design and temperature control system allow for quick replacement, simplified maintenance, and reduced downtime—helping laboratories maintain efficiency while controlling operating costs.
Typical Configuration
Nutech 3608L Autosampler + 8910CF Preconcentrator + GCMS
Chromatogram
Column Oven with Liquid Nitrogen Cooling. No Dean’s Switch.
Dean’s Switch with FID and MS Detector
FAQ
The Nutech 8910CF is a preconcentrator designed for trace VOC analysis in gas samples. It is used before GC or GC-MS analysis to trap and concentrate target compounds, which improves analytical sensitivity compared with direct injection. This makes it suitable for applications where VOCs are present at very low concentrations and reliable low-level detection is required.
The 8910CF supports pre-configured methods including US EPA TO-14/14A, EPA TO-15/15A, PAMS and China EPA HJ 759 ect. This allows laboratories to implement established VOC methods without major hardware modification or extensive method redevelopment. For users working in environmental air monitoring and related VOC applications, this shortens method setup time and reduces implementation risk.
The system is suitable for a broad range of compounds, including polar compounds such as aldehydes, alcohols, esters, ethers, and ketones, as well as non-polar VOCs, sulfur- and oxygen-containing compounds, and selected semi-volatile organic compounds. This broad analyte coverage makes the system more flexible for laboratories handling different sample matrices and application requirements.
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 analytical performance.
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.
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.
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.
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.
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.
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.
Intuitive Software for Method Setup and System Monitoring
Supported Methods & Standards
Nutech instruments are designed to support a wide range of internationally recognized monitoring methods and standards.
US EPA Method TO-14A/15/15A
Determination of Volatile Organic Compounds (VOCs) in Air Collected in Specially Prepared Canisters and Analyzed by Gas Chromatography–Mass Spectrometry (GC-MS)
US EPA Method 327
Fugitive and Area Source Measurement of Selected Volatile Organic Hazardous Air Pollutants Using Specially Prepared Canisters
US EPA Method OTM-50
Sampling and Analysis of Volatile Fluorinated Compounds from Stationary Sources Using Passivated Stainless Steel Canisters
NIOSH Method 3900
Volatile Organic Compounds, C1 to C10, Canister Method
ASTM D5466-21
Standard Test Method for Determination of Volatile Organic Compounds in Atmospheres (Canister Sampling, Mass Spectrometry Analysis Methodology)
GAW (Global Atmosphere Watch) Report 204
Standard Operating Procedures for Air Sampling in Stainless Steel Canisters for Non-Methane Hydrocarbons Analysis
China HJ 759
Ambient air-Determination of volatile organic compounds- Collected by specially-prepared canisters and analyzed by gas chromatography/mass spectrometry
China HJ 1444
Ambient air－Determination of 10 sulfur compounds－Collected in canisters and analyzed by preconcentration/gas chromatography
Japan National VOCs Analysis Standard (7 Compound with TO-17 and 14 Compound with TO-15)
Manual for Measurement Methods for Monitoring Volatile Organic Compounds (VOC) Concentrations in Ambient Air
Japanese original name: 環境大気中の揮発性有機化合物（VOC）濃度モニタリングに係る測定方法マニュアル
Taiwan NIEA A715.16B
Method for Determination of Volatile Organic Compounds (VOCs) in Air Collected in Canisters and Analyzed by Gas Chromatography/Mass Spectrometry (GC/MS)
Taiwan NIEA A741.12B
Method for Determination of N-Butyl Acetate and Other VOCs in Air Collected in Canisters and Analyzed by GC/MS
Customer Testimonials
Coupled with 3608H Autosampler for Both High Conc. & Low Conc. Analysis
MFC for Low Conc. and Loop for High Conc.
