Compare the Accelerated 7200A Preconcentrator and Cryogen-Free 7200CTS Preconcentrator Systems

Meeting the Demands of the New Global Volatiles Market

With extreme air pollution events on the rise and more conclusive epidemiological data linking ambient VOC exposure to disease, global efforts to reduce pollution and its effects on health are driving aggressive testing and containment policies across developed and developing nations. Increasing government intervention will see demand for testing services across all categories of pollution monitoring rise dramatically, and over the next decade laboratories will be under pressure to increase their analytical throughput. The Entech 7200A Accelerated, Fast GCMS Canister Preconcentrator was specifically designed to meet the need for higher laboratory throughput, drawing on over 3 decades of preconcentrator optimization through Entech’s delivery and support of thousands of canister preconcentration systems world-wide. All of this feedback and innovation has resulted in the fasted and most comprehensive volatiles preconcentrator on the planet, bar none.

EFIT - Time is On Your Side with the 7200A

With EFIT (Extremely Fast Injection Technology), the sample is deposited on the column in less than 1 second, producing 1.4 – 2 second wide peaks that both reduce the required resolving power of the column while increasing centroid signal intensity. The entire suite of TO-15A compounds typically elutes within 8-9 minutes, with equal or greater separation than with prior technology simply because peak widths are under 2 seconds rather than being 5-7 seconds wide. The 7200A with EFIT creates a whole new standard of productivity for laboratories needing to optimize their sample throughput.

Doubling your throughput is like someone giving you a free GC-MS, as well as another free preconcentrator, since one system can generate the data of 2 systems. Would you spend another $2-3 in LN2 to allow you to run another sample without the space or cost of another GCMS? Whether you are a contract lab or an agency needing to improve efficiency, faster throughput simply makes good sense.

Available on GSA. 

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Features of the Fast GC-MS 7200A LN2 3-Stage Preconcentrator
  • Extremely Fast Injection Technology (EFIT)

    Extremely Fast Injection Technology (EFIT) that reduces bandwidth to 1 second or less on column

  • Much shorter run times and cycle times = Higher Productivity

    Cycle times injection to injection as short at 20-25 minutes for a 250mL sample size.

  • Complete elution of TO15 compounds in under 10 minutes, with column bakeout done in just 2-3 additional minutes

  • Up to 30% reduction in LN2 consumption as compared to prior Entech preconcentrators (7100A, 7200)

  • Lower carryover by optimizing Silonite coated flowpath temperatures and M3 bakeout timing

  • Superior Water Management (3-5x better than 7200) reduces impact on GCMS, and prevents MS signal loss even when doubling the number of injections per hour, per day.

  • Less column bleed resulting in better baselines and fewer source cleanings

  • Advanced software that improves the user experience

  • Better Autosampler Options:

    7016D Classic 6L Canister 16-Position

  • Autosampler

    • 7650-M for soil gas analysis and screening
    • New SkyCan Rail Autosampler high productivity ambient or source level canister analysis

Accu-Sample TechnologyTM

Accu-Sample Technology combines digital valve control with direct volume measurement rather than indirect time integrated flow measurements to allow small volume accuracy to 10cc  over a wider pressure range while allowing air and non-air matrices to to be analyzed accurately.

Preconcentrator Feature Comparison

FEATURES
7200CTS
Cryogen-Free Preconcentrator
7200A
Accelerated Preconcentrator
Design & Performance Specs
Compatible Boiling Point Range
-50°C to >300°C
-105°C to >250°C
Compatibility Range By Carbon Number
C3 to C20
C2 to C14
Primary Trapping System
Multi-Capillary Column Trapping
Packed Traps (Adsorbent, Glass Bead) Open Silonite Column
Focusing Trap
Multi-Capillary Column Trap
Cryofocusing on Unpacked Silonite Tube
Trap Operating Temp
35 to +220°C
-190 to +230°C
Precision
±3% when sampling over 50 mls of sample
±3% when sampling over 50 mls of sample
Detection Limits for EPA Method TO15 Compounds * MS Dependant
0.05 PPBv *
<0.05 PPBv *
Coolant / Cooling System
Fan Cooled
Liquid Nitrogen, 20-60psig
Sample Introduction Volume
1cc to 250cc
1cc to 1000cc
Sample Pressure
10 - 50 psia
10 - 50 psia
Complete Cycle Time
30 min
22 - 30 min
Dynamic Range
Sub-PPB to PPM
PPT to PPM
Polar Compounds
Yes (No Formaldehyde)
Yes
Sulfur Compounds
Yes (No H2S)
Sub PPB using ECTD
Water Removal Efficiency
99%
95 to 97%
Features & Capabilities
Accelerated Analysis
Microscale Purge & Trap
Extended Cold Trap Dehydration
Automated Standards Addition
High CO2 Samples
Accu-Sample Technology
Digital Valve Isolation
Loop Injection Valve
Yes - Included (0.5-2cc) 1cc Typical
Yes - Included (0.5-2cc) 1cc Typical
Pressure / Vacuum Leak Test Prior to Opening
Built-In Sample Ports
4
4
Mass Flow Controllers
No
No
Compatibility
Primary Sampling Media
Canisters, Mini-Cans, Bottle-Vacs, Tedlar Bags
Canisters, Mini-Cans, Bottle-Vacs, Tedlar Bags
Helium Diffusion Samplers (HDS)
Yes (w/7650)
Yes (w/7650)
Thermal Desorption Tubes
Yes, (w/5400)
Yes, (w/5400)
Autosampler Support
All 7650, 7016D, 7032A/D
All 7650, 7016D, 7032A/D
Autosampler Connections
Up to 3
Up to 3
Methods
TO-14A, TO-15, LL-TO-15, HJ759 TO-17, ASTM 5466, PV2120, OSHA 1021
TO-14A, TO-15, LL-TO-15, HJ759 TO-17, ASTM 5466, PV2120, OSHA 1021
Operating Platform
SmartLab 2
SmartLab 2
Operating System
Windows 7, 10
Windows 7, 10
Operating Specifications
Power
1200W
1200W
Voltages
120VAC / 60Hz, 230-240VAC / 50Hz
120VAC / 60Hz, 230-240VAC / 50Hz
Operating Environment
10 - 28°C
10 - 30°C
Outputs
Isolated Contact Closures 2 TTL level optoisolated open-collector outputs as start signals for GC Start
Isolated Contact Closures 2 TTL level optoisolated open-collector outputs as start signals for GC Start
Inputs
Accepts switch closures or open-collector inputs for GC
Accepts switch closures or open-collector inputs for GC
Gases
UHP Helium or Nitrogen (10psig)(w/7650) Air/N2 (30psig)
UHP Helium or Nitrogen (10psig)(w/7650) Air/N2 (30psig)
Weighted Comparison & Special Features
Compound Compatibility Range
Good
Best
Cost of Operation
Best
Elimination of Cryogen Saves Money Less GCMS Maintenance
Better
Uses 30% Less Liquid Nitrogen than 7200
System Hygiene
Best
Unparalled Hygiene & Uptime - Virtually no trap carry-over
Better
Accu-Sample Technology / Valve Isolation Extended Tenax Trap Backflush Bakeout
Water Management / Humid Samples
Best
Near complete elimination of water
Better
ECTD, MPT, Dry Purge+ SmartSplit Water Management (3X Reduction of Water to GCMS)
Cycle Time
Better
Best
Under 25 minutes injection to injection for soil gas or low level ambient or indoor air.
Physical Properties
Weight
33-40 lbs (120VAC), 46-52 lbs (240V)
35-42 lbs (120VAC), 48-54 lbs (240V)
Dimensions
9.5” Wide, 18” Tall, 22.5” Deep
9.5” Wide, 18” Tall, 22.5” Deep

Take full advantage of section 179 tax benefits. Deduct the full purchase price of qualifying equipment purchased or financed during the tax year. This is the perfect end of year addition to your laboratory.

Download the 7200A Brochure and Application Note.