Filter paper, qualitative

Slow < 2 µm. Blue ribbon.

• for very fine precipitates and small particles
• for soil analysis
• for BaSO₄ (hot precipitate), PbSo₄, Cu₂O, ZnS, NiS
• Weight: 84 g/m²
• Thickness: 0.16 mm

SEPARA integrates in one single device auto-sampler vial, filtration membrane, plunger, and cap/septa. The single step filtering process is efficient and saves time. Fast and simple to use. Reducing sample loss. After filtration the sample is ready to use in most standard autosampler. The pre-slit cap ensures easy and clean transfer of sample. 5 different septa material, PP vial with Ø 12 x 33 mm, Filtering capacity 0.48 ml, dead volume <30 µl, maximum operating temperature 50 °C

Highly pure filter paper (approx. 0.08% ash) recommended for precise identification of materials and for sample preparation prior to sensitive detection methods. These filter papers are perfectly qualified for food control according to LFBG paragraph 64 para. 1 and 2, beverage analysis and environmental monitoring.

• Made of the same raw materials (super-refined cotton linters and cellulose) like quantitative filter papers
• High stability and durability due to alpha-Cellulose content above 95%

• High wet-strength
• High chemical resistance to strong acid and alkali suspensions
• Retention of gelatinous precipitate
• 22 µm nominal particle retention rating
• Fast flow rate (Herzberg filtration speed 34 s)
• Maximum of 0.006 % ash concentration

• Available as a round filter or sheet
• Temperature resistance up to max. 900 °C
• Each batch is checked and certified for trace elements
• Made from micro-quartz fibers of extreme purity, binder-free
• Especially good with small amounts of particles

Recommended for preparation of ordinary samples. Clarification of alcohols, essences, vinegar, essential oils, extracts, electroplating baths, flotation sludge, gelatin, glycerol, paints, lacquers, hair tonics, perfumes, tinctures, beer wort, spirits, syrups, salt solutions.

The strips remove excess liquids on microscope slides and thus dry quickly, cleanly and easily stained specimens for microscopy. 1 block = 50 strips.

Filter papers in a flat, quadrant folded format to fit conical filter funnels. Easy and time-saving handling for analyses with high sample throughput.

Wet strength. Suitable for analytical purposes, general laboratory work and for pressure and vacuum filtration.

Smooth. For analytical and technical purposes, such as clarification, analytical sample preparation and particle analysis.