NUCLEODUR® C18 - C 8 Gravity nonpolar high density phasesAvailable as octadecyl (C18 -USP L1) and octyl (C8 - USP L7) modifications. Pore size 110 Å.Ideal for method developmentAllows HPLC at pH extremes (pH 1 - 11)Suitable for LC/MS due to low bleeding characteristicsRecommended for overall sophisticated analytical separationsOptimal for: pharmaceuticals, e.g. analgesics, antiinflammatory drugs, antidepressants, herbicides, phytopharmaceuticals, immunosppressantsParticle size 5 µm, 18 % C

PORAFIL® NC membranes are made from cellulose nitrate. They are easily wettable and suited for filtration of aqueous solutions. In dry atmosphere these membranes are thermally stable to 125 °C and can be autoclaved at 121 °C.

These cellulose mixed ester membranes are reinforced with a polyester fabric. Their filtration properties are very similar to membranes PORAFIL® CM, however, they are mechanically much more stable.

Membranes of polytetrafluoroethylene (PTFE) are particularly suited for aggressive media, since they are chemically inert towards aqueous and organic solutions as well as towards concentrated acids and bases. These membranes are hydrophobic, thus the pressure for filtration of aqueous solutions has to be higher than the breakthrough pressure. PORAFIL® TE membranes can be used at temperatures up to 145 °C

Membranes of cellulose mixed esters are ideal for gravimetric analysis. They are particularly suited for aqueous solutions. The hydrophilic membrane is thermally stable to 125 °C and can be autoclaved at 121 °C. This membrane is often used for contamination tests.

Polyester membranes are hydrophilic and particularly suited for fine filtration, dust analysis, aerosol analysis and ultra-purification of solvents.

These membranes of cellulose acetate have a low protein binding capacity and are suited for aqueous and alcoholic media. The membranes are hydrophilic and can be used for hot gases up to 180 °C. They can be sterilised.

Membranes of regenerated cellulose are resistant towards most organic solvents. They are, for example, used for filtration of solvent mixtures and ultrapurification and degassing of HPLC eluents.

Polycarbonate membranes are mainly used for the determination of AOX.

The syringe filters are used for filtration of suspended matter from liquid samples and are certified for HPLC. Standard CHROMAFIL syringe filters are color coded. CHROMAFIL Xtra syringe filters are labeled for method validation and certification. All CHROMAFIL syringe filters are autoclavable (121 °C and 1.1 bar for 30 min).Hydrophilic membrane with very low adsorption for aqueous and organic/aqueous liquids i.e. polar and medium polar sample solutions. Binding capacity for proteins 84µg/25mm filter.

The syringe filters are used for filtration of suspended matter from liquid samples and are certified for HPLC. Standard CHROMAFIL syringe filters are color coded. CHROMAFIL Xtra syringe filters are labeled for method validation and certification. All CHROMAFIL syringe filters are autoclavable (121 °C and 1.1 bar for 30 min).Hydrophilic membrane, for aqueous solutions, water-soluble oligomers and polymers like proteins binding capacity for proteins 20 µg/25 mm filter.

For rapid detection of oil in water and/or soil.Box of 100 strips.

For determination of pH- value.Plastic dispensing reel with 1 roll of indicator paper and colour scale.

For determination of pH value.Roll length 5 m, 14 mm width. With 3 colour zones and 2 hydrophobic zones. The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colours and increases mechanical stability.Plastic container with 1 roll of indicator paper and colour scale.

For determination of pH- value. Permanent colour. Non bleeding.

For determining water hardness.Colour change from green to red.

For determination of pH- value. Permanent colour. Non bleeding.* PlopTop tube.

Litmus paper, available in blue, red and neutral. Supplied in booklets of 100 strips, 10 x 70mm W x L.Also available as reel. Refill packs available separately.

Roll length 5 m, 10 mm width. With two colour zones. Plastic box with 1 roll of indicator paper and colour scale. Duotest indicator papers combine two different indicator zones on a single strip. The zones are separated by a hydrophobic barrier, which effectively prevents mixing of the reaction colors, simplifying and precisely assigning the pH value.

DC-Entwicklungskammer (Glastrog mit Deckel) zur Verwendung mit bis zu 5 gleichzeitigen Trennungen von 20 x 20 cm DC-Platten/Folien.

Medium-fast.EmbossedFor determination of sugar content, colour, essential oils and emulsionsWeight: 75 g/m2Thickness: 0.25 mm

Hydrophilized polytetrafluoroethylene syringe filters labelled for method validation and certificationHydrophobic membrane with additional hydrophilic characteristicsFor polar and nonpolar solutionsResistant against all kinds of solvents as well as acids and bases

A maximum in accuracy and precision is granted for the measurement results due to exactly pre-dosed reagents in 16 mm cuvettes and additional reagents. The tests are pre-programmed in photometers and selected automatically via a barcode on the cuvette. The contact with any dangerous chemicals is avoided because the measurement is performed directly in the test tube. This guarantees maximum safety for the user.

Empty CHROMABOND® column (PP) for SPE, one PE-filter element is already inserted in the column.