Whatman Reeve Angel® Qualitative Filter Paper, Grade 201, GE Healthcare
A general qualitative filter for less critical routine analysis
- Grade 201 retains medium-fine precipitates
- Relatively slow filtration speed
- Smooth surface and close texture
- Low loading capacity
- For general-purpose qualitative analysis
Reeve Angel brand filters are designed for routine, repetitive applications and offer uniformity within grade and over time, consistent quality and good to excellent performance at a moderate cost. The filter is wet-strengthened with a small amount of chemically stable resin to extend the life of the filter and improve handling. Normal qualitative applications will not introduce any significant impurities into the filtrate.
Reeve Angel brand cellulose filter papers are also available in folded (prepleated) form, which are recommended to those laboratories making a large number of filtrations as a matter of daily routine. Pleating increases the effective filtration area, thus yielding faster flow rates.
Widely used in industrial laboratories and student laboratories for routine filtration.
Caution: These papers are not suitable for nitrogen analysis.