Nitrogen Evaporator - N-EVAP 45 Position

Our 45 position nitrogen evaporator (Catalog #11645) offers the largest number of sample positions in our N-EVAP line. Timed, digitally controlled water bath temperatures provide even evaporation rates. Timed, automatic gas flow slows evaporation to a minimum once the timed cycle has been completed by shutting of the heat and the gas flow. Our unique dual band spring hoist assembly ensures easy and effective operator use. This time-tested, durable system provides the least expensive price per position of all our circular N-EVAPs. The evaporative system, along with the standard flow control and pressure reducing regulator, enables the operator to achieve the desired level of concentration with efficient nitrogen usage. Acid resistant models are available. Please feel free to contact us for any specific questions about these instruments. Specifications: 

Temperature Ranges

• Water Bath: 30°C-70°C (± 1°C)

Test Tube Ranges:

• 45 Position: 10mm-30mm inner ring (15 pos), 10mm-19mm outer ring (30 pos)
• Volume: 10ml to 50ml

Standard Features:

• Adjustable flow meter
• High temperature limit switch
• Nitrogen filter
• High pressure phthalate free tubing for safety, Teflon tubing for no contamination
• Side control box
• Digital temperature control
• Pressure regulator
• Dual band spring hoist assembly
• Precision needle valve tube assembly
• Polypropylene hub, stainless steel shaft, 19 gauge x 4 inch needles
• Safety control cover plate

Optional Features and Accessories:

• Z-Purge/Intrinsically Safe Purge Case
• Instrument only, no bath
• High temperature dry bath
• Acid resistant Teflon coating
• Pasteur pipette adapters
• Nitrogen generator
• 0-160 PSI nitrogen regulator
• Chrome plated, brass hub, stainless steel needles, 4 inch x 19 gauge (other sizes available)
• High temperature silicone fluid
• 220v wiring harness

Highlighted Application:

USGS SOP No. HC521A: Extraction and Lipid Separation of Fish Samples for Contaminant Analysis and Lipid Determination

This method describes the extraction of fish samples for organic analysis by gas chromatography (GC) or gas chromatography/mass spectrometry (GC/MS). After the extraction from the fish tissue, a gel permeation chromatography (GPC) column is used for lipid separation and removal. After the lipid and contaminants are fully removed, the samples are transferred to a graduated culture tube and evaporated to 0.5ml using the N-EVAP. For this method, samples are processed in sets of 5-14 so the 45 position N-EVAP allows for 1-3 complete sample sets to concentrate at once.

Other N-EVAP Applications:

• EPA Method 1694
• EPA Method 8321B
• CA EPA Method 428
• EPA Method 527
• For a complete list of N-EVAP methods, 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
• Forensics
• Government
• Academics