Volumetric flasks, class A, made of PFA plastic

Volumetric flasks, class A, made of PFA plastic

VITLAB GmbH

The ever-increasing need to lower the detection limit of elemental trace analysis necessitates the use of appropriate container materials. Today, trace analysis works with concentrations in the range ...read more

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Description

 

The ever-increasing need to lower the detection limit of elemental trace analysis necessitates the use of appropriate container materials. Today, trace analysis works with concentrations in the range of ng/g (ppb) and pg/g (ppt). Other materials, which have not been specially pretreated, may cause a change of concentration due to an interaction of the container wall with the sample and thus adulterate the result of the analysis.

Studies have shown that a low concentration of element standards can be maintained for a longer time if containers used are made from PFA. The selection of containers made of high-purity PFA is not only safer regarding the analysis, it is also economical due to the rationalization of laboratory processes.

The easy-to-clean surfaces without any memory effects complement the valuable attributes of PFA laboratory equipment for sampling, preparation and analysis in the field of elemental trace analysis.

The most important PFA characteristics:
- High thermal stability from -200 °C to +250 °C
- Chemical inertness against almost all chemicals
- Extremely hydrophobic and antiadhesive
- Good clarity and form stability, suitable for volume measurement devices
- Long maintenance of reference material with low concentrations in PFA containers
- Extremely smooth surfaces – easy to clean
- No memory effects
- High purity of the basic material
- Very suitable for use within elemental trace analysis

The flasks are available in sizes from 10 ml to 500 ml.

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