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Carbon Extraction & Graphitization System (CEGS) $112,500
Load a pretreated sample into the inlet port, select your process from the drop-down menu, click Start, and you can walk away. The system automatically notifies you by email or text message when it's ready for another sample.
Once the reactor bank is full of completed samples, the graphite is easily unloaded for packing into accelerator targets. After the reactors receive new dessicant and iron catalyst, a short automatic procedure prepares them for another batch of samples. Total human effort averages less than 5 minutes per sample.
Quick-change inlet port adapters allow the CEGS to easily accept organic, carbonate, and gas samples. Stepped-temperature combustion is built-in. Any fraction can be analyzed or discarded independently of the others.
A fine-bead hot quartz bed, integrated into the combustion tube, ensures that all carbon is fully oxidized. It also mitigates the intrusion of contaminant particles into the vacuum system. A 20-micron frit provides further protection. Additionally, the fan-cooled stainless steel trap immediately above the combustion chamber catches room-temperature-condensable combustion gas products. Together, these measures work to keep the inlet port and the rest of the vacuum system clean for years of service.
Aeon's novel variable-temperature trap offers extreme precision and stability, enabling the quantitative isolation of targeted gases by distinctive phase change characteristics. Throughout the system, transfer coldfingers are temperature-managed by a reliable, efficient liquid nitrogen delivery system. Average liquid nitrogen consumption is less than three liters per sample.
CEGS with integrated sample-preparation station $130,000
Aeon's integrated sample preparation station includes three frequently-needed accessory vacuum chambers:
  • a room-temperature to 200 °C vacuum oven
  • a 50 mm diameter 1200 °C tube furnace (300 mm hot zone)
  • a heated centrifugal concentrator
These share a common, manually-operated high-vacuum system and a liquid-nitrogen-cooled water trap. This convenient configuration supports numerous radiocarbon pretreatment protocols and material preparation tasks, from the lyophilization of delicate bone collagen and gelatin samples, to quartz and pyrex test tube bake-out, and even mundane tasks like pre-drying Viton O-rings.
The tube furnace shares the CEGS' oxygen supply line, enabling glassware to be baked-out in an oxidizing atmosphere. Pressure sensor outputs are fed to the CEGS' data acquisition system, so they can be monitored by the CEGS host computer.
Key features
  • fully automated process control
  • accepts organic, carbonate, and gas samples
  • wide sample mass range: 30 μg to 2.7 mg C are processed routinely
    • small samples (30 to 100 μg C) are automatically diluted with 14C-free carbon to ~100 μg
  • online, stepped-combustion profiles are standard
    • step temperature range: 70 to 850 °C
    • higher combustion and decomposition temperatures (up to ~1200 °C) can be achieved with a modest equipment change.
  • precision, microprocessor-controlled variable temperature trap
    • VTT temperature range: -196 to +50 °C
    • VTT absolute precision: ± 2 °C
    • VTT repeatability: < 1 °C
    • VTT stability (typical drift at hold): ± 0.3 °C
  • optimal CO2 sublimation conditions:
    • performed with 10-25 Pa 99.9999% He to suppress undesireable compound evolution
    • minimal excess heat (only 3 °C above vapor-pressure equilibrium temperature at the monitored process pressure)
    • sublimation temperature and pressure profiles are recorded for every sample
  • multi-layer 600 °C copper/silver trap for additional purification
  • precise sample quantity measurement: ± 5 μg C
  • special trace sulfur trapping step available for high-sulfur samples
  • optimal graphitization conditions:
    • precise control of all process gas quantities
      • especially important for ideal graphitization reduction H2:CO2 pressure ratio
    • accurate, tuned PID furnace temperature control
      • absolute temperature precision: ± 10 °C
      • repeatability: < 1 °C
      • stability (worst drift full cycle): ± 1.2 °C
    • small graphite reactor volume: ~3 mL
    • graphitization temperature and pressure profiles recorded for every sample
    • complete graphitization verified by automatic residual pressure check
  • very low process blank levels, typically < 0.002 fM
  • minimal sample cross-contamination: blanks and modern samples can be run back-to-back
  • all software is open-source and customizable
  • most sample processes can be created and changed with no programming
  • unique and powerful Data Visualizer utility
  • automatic logging of all important sample, process, and equipment conditions
  • very little inter-sample equipment maintenance required, normally zero
  • minimal manpower requirements: less than 5 minutes per sample
  • minimal routine maintenance
  • processes up to six organic samples per day
  • optional additional hardware can increase throughput to nearly 30 samples per day (contact us for details)
Every Aeon CEGS purchase includes
  • Delivery, installation, calibration, initial setup, and testing
  • Two days of hands-on, on-site training
  • A starter kit with enough consumable supplies to process about 100 samples
  • A full set of maintenance and special tooling
  • One year of (off-site) technical support
The Aeon CEGS requires the following
  • a 3 meter long by 60 cm deep table or bench space with at least a meter of clear space above the surface
  • two 120 VAC, 15 A outlets on separate circuits
  • an adjacently-located standard low-pressure Liquid Nitrogen cylinder (pressure-building not required)
  • compressed air (> 25 psi, ~5 cfm)
  • research-grade, pressure-regulated gas cylinders of He, H2, O2
  • a pressure-regulated gas cylinder of 14C-free CO2
  • the sample preparation station requires an additional 1.5 m long x 75 cm bench space and 120 VAC, 15 A outlet/circuit

Many CEGS components are useful in a variety of other applications. Below is a partial list of items made by Aeon, primarily for our CEGS, but also available for spares, or for building your own custom automated process equipment. Please contact us at if you'd like to make a purchase, or if you have any questions.

item pn unit price ($)
Electrical and electronics
DAQ system, basic DAQ ea 583.63
DAQ system, expanded DAQEX ea 689.05
actuator controller 64 channel AC64 ea 363.66
heater controller 6 channel + 16 TC channels HC6+TC16 ea 134.50
switchbank 16 channel SB16 ea 205.89
actuator power supply 5V PS-5V12A ea 27.05
pressure sensor power supply +/-15V PS15-15V2.8A ea 40.00
pressure sensor power supply 24V PS24V8.8A ea 51.19
CCA 8-channel switch bank CCA SB8-A ea 33.28
CCA 8x2 0-5V multiplexer CCA MUX8X2 ea 20.64
CCA DAQ AI voltage divider CCA VDIV ea 5.00
CCA device controller CCA DC-A ea 27.82
CCA device mux selector CCA DSX-A ea 28.29
CCA digital servo motor controller CCA DSMC-A ea 27.24
CCA LN scale amp CCA LNSINA ea 39.48
CCA power supply terminal board CCA PSTB ea 24.17
CCA servo mux 8 channel CCA SX8-A ea 30.17
CCA six-channel heater controller CCA HC6 ea 55.27
cable, AC device ea 8.19
cable, actuator 22/3 ribbon ea 11.55
cable, actuator 22/5 ribbon ea 12.21
cable, DC power 22/2 ribbon ea 7.51
cable, pressure gauge 722B ea 17.79
cable, pressure gauge 901P ea 17.79
cable, pressure gauge DMB ea 24.04
cable, pressure sensor ea 10.57
cable, serial 22/3 ribbon ea 11.31
ion gauge cable adapter ea 2.21
Electromechanical and Transducers
actuator 1/2 plug valve APV8 ea 54.56
actuator 1/4 plug valve APV4 ea 54.38
actuator 3/8 plug valve APV6 ea 54.56
actuator flow valve AFV4 ea 116.97
actuator LN valve ALNV ea 19.48
servo S208 oz S208 ea 19.48
servo S208 oz 360 S208-360 ea 25.32
servo S208 oz 360 digital incremental S208di ea 64.57
actuator frame 4PV AF-4TV ea 17.50
actuator frame 6PV AF-6TV ea 17.50
actuator frame bearing 4LA AFB-LFV ea 12.15
actuator coupling 4LA AC-LFV ea 15.08
actuator coupling 4PV AC-4PV ea 13.08
actuator coupling 6PV AC-6PV ea 13.26
furnace 1/2 ID x 2 OD x 2 L CFF-2 ea 215.25
furnace 1/2 ID x 2 OD x 3 L CFF-3 ea 172.17
furnace w/TC 1/2 ID x 2 OD x 3 L CFF-3-TC-K ea 215.58
graphite reactor GR ea 430.90
LN Tank Scale SCALE-LN-TANK ea 377.66
pressure sensor, 30 psi, sealed HSCSLNN030PAAA5-S ea 81.86
TC Type T economy for MHC ea 5.15
LN devices & distribution
LN manifold LNMAN-VX11 ea 295.84
LN manifold valve stem LNMAN-VS ea 11.58
LN phase separator v2 LNPS-2 ea 63.33
VTT v3 VTT-3 ea 221.59
FTC 3/8 FTC-6 ea 46.86
FTC GR bank FTC-4GRX6 ea 111.92
FTC VP FTC-VP ea 46.86
Fittings, adapters, plumbing
7/8 compr x 1/2 female ES adapter ESA-14CX8ID ea 32.03
1/2 ST x 1/4 female ES adapter ESA-8STX4ID ea 16.30
backing washer 1/2 O-ring 8STBW ea 1.38
backing washer 1/4 O-ring 4STBW ea 0.64
backing washer 3/8 O-ring 6STBW ea 1.33
indium 1/4 x 3/8 x 1/16 seal SEAL-IN ea 4.83
4.5 CF x 1/2 tube adapter CF45XT05 ea 106.80
ISO63 x 1/2 tube adapter ISO63XT05 ea 114.60
KF16 x 3/8 tube adapter KF16-375-LF ea 46.23
KF25 x 1/2 tube adapter KF25-500-LF ea 46.98
inlet port breakseal adapter IP-BP ea 172.89
needle port adapter 1/4 NP-4 ea 39.20
needle port adapter 3/8 NP-6 ea 39.30
CO2 cylinder adapter 3/8-24F x 1/4 tube CO2-4 ea 49.42
CO2 cylinder, 25 mL CO2-CYL-25ML ea 5.19
vacuum LN water trap, complete ea 861.34
vacuum LN water trap, less dewars & lab jack ea 404.91
SS 1/2 tubing electropolished, short SS-8X035-EPX1.77 ea 3.77
SS 1/4 tubing electropolished, short SS-4X035-EPX1.17 ea 3.07
SS 3/8 tubing electropolished, short SS-6X035-EPX1.29 ea 3.30
SS 1/2 tubing electropolished SS-8X035-EP in 0.65
SS 1/4 tubing electropolished SS-4X035-EP in 0.42
SS 3/8 tubing electropolished SS-6X035-EP in 0.55
SS tubing EP cut & finished SSEP-CNF ea 4.20
furnace tube adapter, 2 in x 1/4 FPT ea 79.31
furnace tube end cap set, 2 in x 1/4 FPT VTECS ea 279.54
furnace tube end cap, 2 in ea 64.31
furnace tube end protector, 2 in ea 62.76
Glass parts
air heating chamber CHMB-AIR ea 8.96
CuAg trap 3/8 x 3 TRAP-CUAG ea 43.36
quartz bed 3/8 x 3 TRAP-QBD ea 12.57
quartz vacuum chamber, 50 MM tube ea 467.18
quartz combustion chamber tube 9 x 150 mm QUARTZ-9X150-CLOSED ea 3.45
quartz durham tube 6 x 25 mm QUARTZ-6X25-CLOSED ea 1.91
1/2 x 3 quartz coldfinger QUARTZ-12X75-CLOSED ea 18.00
3/8 x 3 quartz coldfinger QUARTZ-9X75-CLOSED ea 18.00
pyrex 3/8 x 3 coldfinger PYREX-9X75-CLOSED ea 1.88
water trap bowl 20 mm OD ea 5.28
quartz beads 2 mm QTZ-BEADS 50 g 73.50
quartz chips 2+ mm QTZ-CHIPS 50 g 55.00
quartz sugar QTZ-SUGAR 50 g 53.00
Frame & structural components
GR furnace bank frame ea 162.02
GR furnace bank support ea 8.52
GR furnace swing rest ea 7.04
roughing pump vibration isolator ea 43.11
LN tubing retainer plate LNT-RX11 ea 9.54
solenoid valve mount MOUNT-ASVX11 ea 12.40
turbo pump mounting clamp ea 29.40
lattice clamp FLC ea 10.50
tube strap for XPS body 3 in ea 1.13
tube hitch for XPS body 3 in ea 1.28
tube hitch for XPS body 15 in ea 2.12
trapeze for XPS body ea 2.46
nut 8-32 rectangular 1.125 x 0.625 ea 2.68
clamp #8 ABS tee ea 1.62
clamp, snap-in 1/4 tube x2 CL-SNAP-4X2 ea 5.78
clamp, snap-in 1/4 tube x4 CL-SNAP-4X4 ea 6.90
clamp, snap-in 1/4 tube x4 retainer CL-SNAP-4X4R ea 5.84
Tools & Lab accessories
cathode packing set SS-CPSET-NEC ea 159.34
cathode packing anvil 3 in. SS-CPA-3x3/4 ea 97.66
cathode packing punch SS-CPP-1MM ea 30.84
compressed air filtration system 0.01 micron 21 scfm ea 228.02
blow gun with 1/8 OD x 8" nozzle BG705X ea 55.29
sample tube loading set SS SS-STL-SET ea 87.82
sample tube loading base SS SS-STL-BASE ea 15.40
sample tube loading funnel SS SS-STL-FUN ea 30.40
sample tube loading straw SS SS-STL-STRAW ea 14.72
sample tube bead funnel SS-STL-BDFUN ea 27.30
Fe powder magnetic pickup tool NSPLS-B ea 1.82
GR Fe powder magnet GRMAG ea 6.06
dry bath block 12 well 17 mm dia DBB-12x17mm ea 84.08
dry bath block tall 5 well for 50 mL centrifuge tube DBB-5x50mL ea 101.12
Tube furnace boat tool TFBT ea 26.72
LN valve stem maintenance tool LNVS-TOOL ea 5.88
AIM anode collar wrench ea 31.26
cathode packing set, NEC SS-CPSET-NEC ea 265.40
cathode packing anvil insert, NEC SS-CPINS-NEC ea 15.13
cathode packing funnel, NEC SS-CPFUN-NEC ea 60.80
cathode packing sleeve, NEC SS-CPS-NEC ea 30.13
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