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The HP/Tekmar 3000 Purge & Trap Concentrator purges volatiles from water or soil onto a sorbent trap. This trap is then rapidly heated and the analytes swept with GC carrier gas onto the GC column for separation and detection. The 3000 Series performs environmental analyses with strict adherence to US EPA protocols. The Tekmar 3000 can be interfaced to virtually any GC or GC/MS system.
Varian Archon Purge and Trap Autosampler
This?Varian Archon Autosampler is in excellent condition.
The Archon Purge and Trap AutoSampler is designed to automate the tedious sample handling procedures associated with purge and trap analysis for volatile organic compounds (VOC's) under current EPA methods. The Archon can be used for drinking water, waste water, soil analysis, and solids. The Archon is designed as a stand-alone unit for retrofit to purge and trap instruments.
The Archon is a state-of-the art robotic, X-Y-Z axis autosampler. The AutoSampler utilizes a 51 position sample tray that allows water or soil samples to be run. The tray can be cooled if an optional chiller kit is installed. The Archon has a unique "gripper" arm which moves the sample vial to different positions that will bar code read (optional), identify the vial type, stir the sample, equilibrate to room temperature, and transfer the sample to the water or soil probe position.
When running soil samples, the Archon automates heated purge and trap. The soil sample may be placed in the patented SoilVial, or if the Archon is setup for needle sparging, a standard 40 mL VOC vial. A stirring bar (optional) is added, the cap with a low bleed septum is replaced, and the entire vial placed in the sample tray. The robotic arm transfers the vial to the vial identification step, and then lifts the vial into the heated chamber where water is added, with one or both standards, the sample is then purged directly onto the trap of the concentrator.
If a water sample is to be run, the sample is placed in a 40 mL VOC vial and a stir bar (optional) is placed in the vial and the vial is placed in the tray. The Archon robotic arm moves the vial to the vial ID station and then to the probe location where it is lifted onto the sample probe, and a programmed volume of water is transferred to the purge vessel. It is during the transfer that one or both of the standards are added to the sample. It will also drain and clean the needle, sparge tube, and transfer lines.
The operating modes of the Archon are the Automatic, Manual, and Flush modes. Automatic mode allows for complete unattended operation. Manual mode operation allows for single sample operation of the unit, priority sampling, and running blanks. The Flush mode performs the flushing with hot water and helium for the cleanup of the system. All modes perform per their programmed method.
The Archon is easily programmed through its own color-coded keypad. Programming is menu driven and displayed on an LCD screen. Parameters can be read and altered and the screen displays the function in progress during the run. The Archon interfaces directly with the Tekmar LSC 2000, 3000, OI 4460A, 4560 and other purge and trap units.