Techne Sample Concentrator User Manual download pdf (Page 4)

INTRODUCTION

Please read all the information in this user manual before using the Sample Concentrator.

The Techne Sample Concentrator has been designed to provide a quick and convenient method of

accelerating the concentration by evaporation of solvents from samples prior to analysis. It is designed to

work in conjunction with Techne DB-3, DB-3A or DB-3D Dri-Block

heaters*.

The Sample Concentrator consists of a gas chamber mounted above a Dri-Block

heater into which

vessels containing samples are placed. Hyperdermic needles carry the gas down from the chamber into

the test tubes. The samples are heated from below by the heater and the flow of gas directed over the

surface of the samples displaces the evaporated solvent from above the liquid’s surface. This significantly

increases the rate of sample concentration.

The unit provides accurate and reproducible control over the positioning of the needles. The gas chamber

can be removed from its stand to provide easy access to the samples, and it can be replaced quickly. The

whole unit is compact enough for convenient use in a fume cupboard.

WARNING

HIGH TEMPERATURES ARE DANGEROUS: they can cause serious burns and ignite combustible material.

Users should pay attention to the following points:

• USE CARE AND WEAR PROTECTIVE GLOVES TO PROTECT HANDS;

• DO NOT put hot objects on or near combustible objects;

• DO NOT place any liquid directly into your Dri-Block

heater;

• At all times USE COMMON SENSE.

*The Dri-Block

heater is not provided and must be purchased separately.

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Techne Sample Concentrator User Manual Page 4