The further the detection thresholds for element determination are pushed back in analyses, the more important the purity of the employed chemicals becomes in order to avoid blank value problems. With the aid of the Berghof GmbH BSB-939-IR subboiling unit, any lab can now produce its own high-purity acids from more economical grades (generally reagent grade).
The required quantity and purity are therefore always freshly available. The Berghof BSB-939-IR is characterised by two primary advantages:
1. All components which come into contact with the medium are made of fluoropolymers, making the unit suitable for the purification of hydrofluoric acid, hydrochloric acid and nitric acid.
2. Contact-free heating by means of an IR lamp ensures slow, gentle distillation and a high level of purification. A simple distillation of reagent grade acids will produce purities in the ppb to sub-ppb range. Multiple distillations will purify the acids still further.
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