7150 Headspace Preconcentrator Brochure
Entech Instruments Introduces 7150 Headspace Preconcentrator
Features NEW "Active SPME" Trap and CO2 Cooling for Quantitative Recovery of C2 to C25 Compounds at Sub-PPB Levels
SIMI VALLEY, Calif., March 3, 2009— Entech Instruments, Inc.®, a leading manufacturer and supplier of gas chromatography sample introduction systems, today announced the 7150 Headspace Preconcentrator, designed to recover thermally labile compounds for GC and GCMS applications, such as those containing sulfur, phosphorus and nitrogen. The instrument system will be shown for the first time at the 2009 Pittsburg Conference (Pittcon) at the McCormick Center in Chicago.
The 7150 is unique amongst sample concentrators in its ability to recover C2 to C25 compounds at PPM to sub-PPB levels, including labile compounds unable to survive strong adsorbents or a hot GC injector. A novel first-stage implements “Active SPME” allowing compounds from C12 to C25 to be trapped and desorbed quantitatively. The initial SPME stage eliminates the exposure of heavy VOCs and SVOCs to strong adsorbents, allowing their effective recovery and transmission to the GC. Lighter, unretained compounds that are typically missed using classical, “diffusion-based SPME” are recovered utilizing a CO2 cooled Tenax® trap. Cold trapping allows recovery of sulfur compounds, amines, and other thermally labile compounds.
Dean Switching rather than rotary valves is used to control flows, eliminating absorptive surfaces and dead volume associated with the carryover of heavier and more polar compounds. Moisture is removed prior to GCMS sample injection using direct vapor to solid phase cold trap dehydration that does not cause the loss of other headspace compounds.
“We are pleased to introduce our new 7150 Headspace Preconcentrator which can quantitatively trap samples from 0.5 to 1000cc to maximize the dynamic range of GCMS systems,” said Dan Cardin, president of Entech Instruments. “Proper volume measurement and analyte recovery over a large range of sample sizes is made possible by the utilization of a miniaturized, fused silica lined flow path that reduces inaccuracies associated with fluctuating sample pressures.”
The combination of quantitative volume measurements and recovery of the widest range of GC compatible headspace compounds, enables the true determination of aroma significant compounds during food and flavor testing. The 7150 system is compatible with the Entech 7405 and 7500A robotic autosamplers for R&D and production lab applications.
Other applications for the instrument include environmental testing (air, water and soil), industrial hygiene, breath analysis, forensics, product testing, homeland security, package testing, and residual solvent testing in pharmaceuticals.
7150 Features:
▪ Analyze Solids, Liquids, or Gases
▪ Sample Container Sizes 20cc to 1000cc- For optimal sensitivity and statistical accuracy.
▪ Septumless Micro-Seal Sample Interface- Creates gas-tight seal both before and after headspace withdrawal.
▪ Supports Vacuum Extraction- Perfect for rapid headspace equilibration into large vials.
▪ C2-C25 Quantitative! PPM to sub-PPB Level Detection.
▪ Recovers Thermally Labile Compounds- Includes GC compatible compounds containing sulfur, phosphorous, nitrogen.
▪ Initial Active SPME Stage- Eliminates exposure of heavy VOCs and SVOCs to strong adsorbents.
▪ Extremely Low Carryover- (0.1% or less typical)
▪ Supports All Balance Gas Compositions- (Air, nitrogen, CO2 , H2 , He, methane, mixture)
▪ Eliminates Moisture- Utilizes direct vapor to solid phase cold trap dehydration.
▪ Handles High Ethanol Matrices
▪ Heat Samples from Ambient to 150˚C
▪ Quantitative Trapping of 0.5 to 1000cc- Maximize your GCMS dynamic range!
▪ Exclusive! Dean Switching Headspace Preconcentrator- (Eliminates Rotary Valves)
▪ No Liquid Nitrogen- All 3-stages are CO2 cooled.
▪ Compatible with the Entech 7405 and 7500A Robotic Autosamplers- Ideal for R&D and Production Labs.
About Entech Instruments, Inc.
Founded in 1990 and located in California’s Simi Valley, Entech Instruments, Inc. is a manufacturer of canister-based air sampling and analysis equipment for VOCs for industrial hygiene, indoor air, health and environmental markets.
Contacts:
Royce Ferguson
Marketing
Entech Instruments, Inc.
(805) 527-5939 Ext 7052
royceferguson@entechinst.com
John Deschenes
Analytical Solutions
Entech Instruments, Inc.
(805) 527-5939 Ext 7053
johndeschenes@entechinst.com
Entech Instruments, Inc. | 2207 Agate Court, Simi Valley, CA 93065 | For additional information please visit our website entechinst.com, or call (800) 555-8034.