MACHEREY-NAGEL

Polystyrene-divinylbenzene adsorbent resin for SPE Features Highly porous polystyrene-divinylbenzene copolymer specific surface 1200 m2/g, particle size 50–100 μm very high binding capacity, up to 30 % of adsorbent weight (for comparison: silica adsorbents about 3 %) Recommended...

Adapters for CHROMABOND® Columns

Pehanon pH 4,0 - 9,0 test strips unify pH indicator and reference color chart on one strip. Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions. measuring range:...

QUANTOFIX Nitrate/Nitrite semi-quantitative test strips for the rapid and reliable determination of Nitrate and Nitrite in solutions. Measuring range: 0-10-25-50-100-250-500 mg/L NO3- 0-1-5-10-20-40-80 mg/L NO2-

QUANTOFIX QUAT semi-quantitative test strips for the rapid and reliable determination of quaternary ammonium compounds (QUAT) in solutions. Measuring range: 0-10-25-50-100-250- 500-1000 mg/L benzalkonium-chloride

VISOCOLOR ECO Cyanide colorimetric test kit for the determination of Cyanide in water samples measuring range: 0.01-0.20 mg/L CN- EQ Excepted Quantities or __UN 3316 Chemical kit 9 II 0.004 KG ADR/GGVSEB M11 (E) ADR 3.3.1/251: LQ PAX 960 10 KG CAO 960 10 KG

VISOCOLOR ECO Copper colorimetric test kit for the determination of Copper in water samples measuring range: 0.1-1.5 mg/L Cu2+

QUANTOFIX Chloride semi-quantitative test strips for the determination of chloride (Cl - ) in solutions. *MUST SHIP COLD* Measuring range: 0-500-1000-1500-2000 ->3000 mg/L Cl-

Plumbtesmo sheets for testing of lead on surfaces including metal surfaces, dishes, ceramics and toys. In criminal investigations it is used to search for traces of bullets.

Screw neck vials for storage of liquid samples (8 mL, 12 mL, 16 mL, 24 mL) Normally used in combination with closed top screw caps Sample container available for the 8 and 12 mL screw neck storage vials For vials >= 20mL please also refer to screw neck vials N 24 with their appropriate closures...

Special phase for SPE enrichment of acrylamide from water (DIN 38413-6) Features Base material: activated carbon, highly porous, spherical particles, specific surface >1000 m2/g Recommended application: Determination of acrylamide from water according to DIN 38413-6 Note: Acrylamide and the...

Prepared by hydrolysis of high purity cellulose with HCl mean degree of polymerization 40–200 Available as glass plates and POLYGRAM® polyester sheets Recommended application: carboxylic acids, lower alcohols, urea and purine derivatives

Cellulose adsorbents for column chromatography Features Cellulose MN 100: native fibrous cellulose Standard grade Average degree of polymerization 620–680 Fiber length (85 %) 20–100 μm Specific surface acc. to Blaine ~ 6500 cm2/g Residue on ignition < 10000 ppm, < 20 ppm Fe,...

pH-Fix 0.3-2.3 indicator strips with chemically bound indicators are the bench mark for pH testing with test strips. The fixation prevents bleeding and therefore contamination of the sample. measuring range: pH 0.3-0.7-1.0-1.3-1.6-1.9-2.3

Features Base material: Nano-silica 60, specific surface (BET) ~ 500 m2/g, mean pore size 60 Å, specific pore volume 0.75 mL/g, particle size 2–10 μm, pH stability 2–10 Partial (50%) or complete (100%) octadecyl modification, carbon content 7.5 and 14%, respectively Indicator:...

Features Silica 60, specific surface (BET) ~ 500 m 2 /g, mean pore size 60 Å, specific pore volume 0.75 mL/g, particle size 5–17 µm; standard grade Outstanding wettability for precise colorization results, even with 100 % aqueous detection reagents Excellent separation efficiency...

More convenient, consistent, and safer sealing process compared to crimping (better reproducibility) No risk of inaccurate or inconsistent crimping results 1.5 mm thick septa are easier to penetrate than crimp closures N 20 with 3 mm thick septa generating less particles during sample pick up...

QUANTOFIX Formaldehyde semi-quantitative test strips and reagents for the determination of formaldehyde in solutions. Measuring range: 0-10-20-40-60-100-200 mg/L HCHO __UN 3316 Chemical kit 9 II 0.050 L ADR/GGVSEB M11 (E) ADR 3.3.1/251: LQ PAX 960 10 Kg CAO 960 10 Kg

CHROMAFIL® syringe filters – Ideal for GC, HPLC and UHPLC sample filtration By using CHROMAFIL® syringe filters unwanted particles are removed which can otherwise cause contamination and clogging of sensitive instrumentation. So, filtering your samples leads to an increase of lifetime...