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Every chemical reagent and pharmaceutical substance is only as good as its quality. Highest quality standards are the key driver of success for any company in the areas of chemicals and pharmaceuticals. The quantitative filter papers of Hahnemühle are the purest paper in the filter market. The average ash content of is 0,004%, and 0,002% ash of the hardened quantitative papers.
Target User:
Typical fesaures of the filter papers:
The high consistency of the quality level assures reliable results of the analysis from one lot to the other over many years without adjusting your analysis procedure. We keep the promise of a documented production process with 100% batch traceability down to the raw material used.
OBJECTIVE | TECHNIQUE | TYPE of FILTER | PART NUMBER-GRADE | |
|---|---|---|---|---|
Solid-liquid separation | Filtration | Filter paper for general use | Smooth Crained Creped | 0860 0858 0905 |
Gravimetric analysis | Filtration | Filter paper quantitative analysis | 589/1 589/2 589/3 589/4 589/5 589/6 | |
Hardened filter paper for quantitative analysis | 1505, 1506, 1507 | |||
Analysis of chemicals | Paper chromatography | Papers for chromatography | 3469, 2043 a/b | |
Clarification of samples | Prefilter for membranes | Glass microfibre filters | GF 9 | |
Analysis of extractables | Extraction | Cellulose extraction thimbles | 900, 901 | |
Determination of water content | Thermo-Gravimetry | Glass microfibre pads | Carrier 029 Carrier 040 | |
Microbiological analyses | Retention of microorganisms | 0.2 and 0.45 mm gridded cellulose nitrate membranes, sterile | NCS 045 47 BC NCS 020 47 BC MCES 045 47 BC MCES 020 47 BC | |
Clarification of biological samples | 0.2 and 0.45 mm cellulose acetate syringe filter, sterile | SACS 045 SACS 020 | ||
HPLC | Clarification of organic samples | Nylon syringe filter, 0.2 µm | SNY 020 25 100 | |
Regenerated cellulose syringe filter, 0,2 µm | SCR 020 | |||
Filtration of mobile phase | Nylon membranes, or regenerated cellulose, 0,2 µm | NY 020 CR 020 | ||
Protection of apparatus and surfaces | Absorption | Absorbent paper with polyethylene layer | 295 PE | |
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