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MULTIVAP - Model 11848 -48 Position Nitrogen Evaporator
The 48 position MULTIVAP nitrogen evaporator (Catalog# 11848) is a high temperature dry block model. This instrument contains a rectangular gas distribution system mounted on a frame and dual post assembly. The manifold delivers nitrogen gas to the needles or glass pipettes, which direct the gas onto the sample’s surface. This method results in rapid solvent evaporation and sample concentration. In order to conserve nitrogen gas, the manifold has a toggle switch for every row of 6 samples, which allows individual rows to be shut off when evaporating batches of less than 48 samples. Nitrogen gas flow is also controlled by an adjustable flow meter and a built in pressure regulator.The 48 position MULTIVAP uses a heated aluminum dry block to reach evaporative temperatures ranging from 30°C to 120°C. Sample blocks are customized for the user’s sample size for maximum and even heat transfer. Inserts can be customized for sample vial outside diameters of 10-22 mm.
One set of inserts is included with the instrument. Since these inserts and heat blocks are made-to-order, we will request that you deliver us three sample vials for each unique vial size upon placing an order for a 30, 48 or 80 Position MULTIVAP. In situations where shipping sample vials to Organomation is not possible, we need precise measurements of your sample vials to be taken as illustrated in this guide.
All models can withstand contact with organic solvents; however acid resistant models are also available for use with corrosive solutions.
- Capacity: Evaporate batches of up to 48 samples, with outside diameters of up to 22 mm
- Precise: Digital controls allow precise temperature regulation
- Wide Temperature Range: The temperature is controlled up to 120°C to accomplish evaporation of solvents with higher boiling points
- Cost-Effective: Conserve gas by using ON/OFF valve for rows not in use
- Adjustable flow meter, 0-50 lpm
- Dual band hoist spring assembly
- High temperature limit switch for safety
- Safety control cover plate
- Digital temperature controller
- Electronic timer
- Reset circuit
- Nitrogen filter
- Gas distribution manifold
- Built-in pressure reducing regulator
- High pressure tubing
- Needle guide
- 220v wiring harness (Option Code -2)
- Z-Purge/intrinsically safe purge case (Option Code -Z)
- Acid resistant coating on instrument and needles (Option Code -RT)
- Pasteur pipette adapters in place of needles (Option Code -P)
Highlighted Application:
EPA Method 1658: The Determination of Phenoxy-Acid Herbicides in Municipal and Industrial Wastewater
This method is designed to meet the survey requirements of the Environmental Protection Agency (EPA). It is used to determine (1) the phenoxy-acid herbicides and herbicide esters associated with the Clean Water Act, the Resource Conservation and Recovery Act, and the Comprehensive Environmental Response, Compensation and Liability Act; and (2) other compounds amenable to extraction and analysis by automated, wide-bore capillary column gas chromatography (GC) with electron capture or halogen-selective detectors. Extracts are concentrated by nitrogen evaporation using a heated bath that can be maintained at 35 to 40°C
Other Applications:
• EPA Method 539
• EPA Method 548.1
• EPA Method 523.1
For a complete list of methods including nitrogen evaporation, please visit our Applications Page
Organomation instruments are valuable to sample preparation for research and testing with applications in fields such as:
- Environment
- Agriculture
- Food and Beverage
- Medicine
- Quality Assurance
- Forensic Science
- Government
- Academia
- Oil and Grease