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Tullgren Funnels

Summary

An extraction method for soil animals. Creates a temperature gradient of approximately 14°C in a litter or soil sample, stimulating downward movement of soil arthropods into a collecting vessel. Simple design enables easy access. Single funnel, 6 bank (illustrated) or 12 bank versions available.

Features

  • Wet or dry extraction of soil organisms
  • Precision aluminium funnel construction
  • Stoppered collection vessel prevents loss of creatures
  • Easy access design

Product Details

Tullgren Funnel, Components

Funnel Assembly

Tullgren Funnel, single

Single Funnel

Tullgren Funnels, 6-bank

Bank Of 6 Funnels

In use around the world for more than 50 years Tullgren Funnels provide the best solution for both dry and wet extraction of soil organisms from soil samples.

A soil or leaf litter sample is placed in the removable upper part of the funnel. Heat and light from the lamp creates a temperature gradient of approximately 14°C in the soil sample. This stimulates the downward movement of soil arthropods, and similar organisms, through the gauze to a receiver attached to the base of the funnel. The position of the lamp is adjustable to enable the temperature of the soil to be raised gradually thus preventing the slower moving species from becoming trapped in hard dry cakes of soil.

For wet extraction, the funnel is filled with water and the gauze is placed in position. Nematodes and other swimming forms collect in the base of the funnel and can be drawn off at intervals (this method is suitable for collecting potato eel worm). This method can be used either with or without the use of the lamp.

Single Tullgren funnel

Supplied complete with funnel, wire gauze, soil retaining cylinder, length of rubber tube, lamp house with lamp holder, retort stand and instructions.

Bank of 6 Tullgren funnels

Supplied complete with funnels, wire gauzes, soil retaining cylinders, rubber tubing, lamp houses with lamp holders, metal support framework and instructions.

Bank of 12 Tullgren funnels

Supplied complete with funnels, wire gauzes, soil retaining cylinders, rubber tubing, lamp houses with lamp holders, metal support framework and instructions.

Specification

Model Single 6 Bank 12 Bank
Weight 2.5Kg 6Kg 9Kg
Mains Voltage 110-240V, 50/60 Hz

Ordering Information

Description

Part No.

Tullgren funnel, Single bank

BS00291

Tullgren funnel, 6 bank

BS00289

Tullgren funnel, 12 bank

BS00290

The company reserves the right to change specification without notice.
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Burkard Scientific Ltd

PO Box 55

Uxbridge

UB8 2RT

UK

Email: sales@burkardscientific.co.uk

Tel: +44 (0)1895 230056

Fax: +44 (0)1895 230058

 


Burkard Scientific reserves the right to change specifications without notice. Copyright (c) 2000-2015 Burkard Scientific Ltd.