OI Analytical Eclipse 4660 Purge-and-Trap Sample Concentrator

The Eclipse 4660 Purge-and-Trap Sample Concentrator processes samples for analysis of volatile organic compounds (VOCs) by gas chromatography (GC) or gas chromatography/mass spectrometry (GC/MS). Innovative, patented components within the Eclipse significantly improve sample processing steps of the purge-and-trap technique. 

  • Features
  • Specifications
  • 문서

A key technology is the built-in Cyclone Water Management system that removes water during the thermal desorb step. The high efficiency of water removal allows analysis of polar compounds such as alcohols, ethers, and ketones without interference from water. Degradation of chromatographic columns and maintenance of the GC or GC/MS are also minimized.

  • Patented Cyclone Water Management™ system removes >96% of water during the thermal desorb step allowing analysis of polar compounds
  • Patented Foam Sensor™ and Foam Buster™ detect the presence of foam and disrupt it during the purge step to prevent system contamination
  • Sparge Overfill Sensor (SOS™) prevents overfilling of the sparge vessel and system flooding
  • Patented Infra-Sparge™ Sample Heater ensures consistent sparge vessel temperature conditions for improved compound recoveries and %RSDs
  • Color touchscreen with Windows® CE software interface (English and Chinese languages)
  • Optional pHDetect™* module automates sample pH measurement (*patent pending)
Sparge Vessel 5-mL standard, 25-mL optional
Sample Heater (Option) Infrared heating of sparge vessel with in-situ temperature measurement and feedback control
Foam Sensor (Option) Optical sensor detects foam in sparge vessel and stops run to prevent sample pathway contamination
Sparge Overfill Sensor (Option) Capacitance sensor detects presence of water in sparge vessel to prevent introduction of a new sample and overfilling if the previous sample has not drained properly
pH DetectTM Module (Option) Automatically measures the pH of samples with date and time stamps stored in a log file for reporting or transfer to a LAN/LIMS system
Autosampler (Options) 4551A (water samples), 4100 (water/soil samples)
Trap 3.175 mm O.D. x 2.227 mm I.D. (0.125 in. O.D. x 0.105 in. I.D.)
Trap Heating Direct resistance heating
Trap Temperature Programmable ambient to 450 °C in Purge, Desorb, and Bake steps
Trap Cooling > 240 °C/minute cooling rate (200 °C to 30 °C in < 50 seconds); Cool down to ambient temperature + 1 °C
Water Management Eliminates > 96% of trapped water, maximum temperature 240˚C; Cool down to ambient temperature + 1 °C
Sample Transfer Line 1/16 in. x 48 in. standard (60 in. optional)
Sample Transfer Line Temperature Programmable ambient to 295 °C
Operator Interface Color LCD touchscreen display with Windows® CE-based software
Communications Ethernet LAN connection
Gas Requirements 99.999% (UHP Grade) He or N2 purge gas

Safety: Low Voltage Directive 2006/95/EC, EN 61010-1:2010 3rd
EMC: Directive 2004/108/EC, EN 61326-1:2006

Power Requirements

115 VAC ± 10% 50/60 Hz,
230 VAC ± 10% 50/60Hz
750 VA maximum

Dimensions 46 cm H x 40 cm W x 42.6 cm D
(16.71 in. H x 15.5 in. W x 16.75 in. D)
Weight 14.5 kg (32 lbs.)
Patents U.S. 5,250,093 / 5,261,937 / 5,337,619 / 6,894,784B2