4100 Solid and Liquid injections

The OI Analytical 4100 Water / Soil Sample Processor automates the handling and processing of samples in 40-mL VOA vials for purge-and-trap analysis of volatile organic compounds (VOCs) in accordance with U.S. EPA methods. The 4100 efficiently processes up to 100 drinking water, wastewater, or soil samples and operates with a single or dual Eclipse 4660 purge-and-trap instruments. 

The 4100 is equipped with an innovative pneumatically-actuated cylindrical vial gripper that surrounds and conforms to each vial. The VOA Constrictor™ mechanism lifts and transports 40-mL VOA vials to and from the sampling station with unsurpassed reliability. 

  • Holds 100 samples in two 50-position vial racks
  • Operates with one or two Eclipse 4660 purge-and-trap instruments
  • Vial cooling option keeps vials at 10°C or less in accordance with USEPA Method 524.3
  • VOA Constrictor™ vial gripper has built-in vial sensor
  • Standard Addition Module has two 3-mL reservoirs, expandable to four 3-mL reservoirs
  • High-speed injection valves in Standard Addition Module inject programmed volume with no excess or waste

 Purge-and-Trap Compatibility

Operates with one or two Eclipse 4660 instruments

 Sample Capacity

100 standard USEPA 40-mL VOA Vials

 Sample Loop

5mL standard loop, 10 or 25 mL loops optional

 Automated Standard Addition

(2) 3mL reservoirs standard, expansion to (4) optional

 Sampling Mode – Water

Aspiration and transfer to purge-and-trap instrument sparge vessel

 Sampling Mode – Soil

In-vial needle sparging and transfer to trap of purgeand-trap instrument

 Sample Transfer Pathway – Water Samples

Silcosteel 316L stainless steel and PEEK

 Sample Transfer Pathway – Soil Samples

Silcosteel 316L stainless steel and PEEK

 Blank Water Transfer


 Vial Trays

(2) 50-position VOA vial trays

 Vial Gripper Mechanism

Pneumatically actuated cylindrical gripper with vial sensing

 Vial Cooling Option

Cooling base for two 50-position vial trays with quickdisconnect fittings for recirculating chiller

 X/Y-Axis Mechanism

Digitally controlled linear drive rails

 Z-Axis Mechanism

Pneumatically actuated

 Operating Software

VOA View Windows-based GUI

 Operating System

Windows 7or Windows 8 and 8.1

 PC to 4100 Communications

USB port for each 4100 instrument connected to PC

 Water Supply

Clean, VOC-free water for rinsing sample pathway

 Gas Requirements - Sample Transfer

99.999% (UHP Grade) He or N2

 Gas Requirements - Gripper / Z-axis Actuator


 Power Requirements

110VAC / 60HZ or 230VAC / 50Hz


27 in. W x 24 in. D x 21.5 in. H

68.6 cm W x 61 cm D x 54.6 cm H


36 Kg (80 lbs) , typical depending on options


CE Safety and EMC EN50082-1/EN55011 Group 1 Class A