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…

Duotest pH 1 - 12 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 and increases the mechanical stability. measuring range: 1-2-3-4-5-6-7-8-9-10-11-12

VISOCOLOR Powder Pillows Ammonium reagent set for photometric determination of Ammonium. Ideal for drinking water, surface water and waste water analysis. Measuring range: 0.02-0.80 mg/L NH4-N

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

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…

QUANTOFIX Multi stick for aquarium owners are the semi-quantitative test strips for the determination of the total hardness (Ca 2+ , Mg 2+ ), carbonate hardness (HCO 3 -, CO 3 2-) and the pH value of aquarium water. Measuring range: 0-6.3-12.5-18.8-25.0-31.3 °e (total hardness)…

POLYGOSIL® Irregular silica phases for LC, unmodified, SiOH, normal phase Features Irregular silica for analytical application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available particle sizes 5 µm, 7 µm and 10 µm

This kit contains all chemicals required for: Separation of analgetics (pain relievers) Drug analysis as shown for cinchona bark For the separations with kit F3, the materials kit TLC micro-set M is prerequisite.

MACHEREY-NAGEL glass vials are made from 1st hydrolytic class glass Crimp neck vials N 11 are available in broad variety, incl. vials with small/wide opening, with/without label + scale, in clear or amber glass (silanized versions also available) Guaranteed specification obedeyance by…

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…

Replacement septa for 8-425 screw caps from MACHEREY-NAGEL PTFE virginal: temperature resistant: –200 °C / +260 °C, very high analytical purity, very hard (but very thin material), no resealability Red Rubber / TEF (FEP): temperature resistant: –40 °C / +110 °C,…

MACHEREY-NAGEL glass vials are made from 1st hydrolytic class glass Wide opening; vials to be sealed with our screw closures N 9, bonded or assembled Different inserts for wide opening available Due to the cap design universally usable on almost all autosamplers in GC and HPLC Screw…

HPLC columns for analysis of inorganic anions NUCLEOGEL® Anion I: strongly basic polymer-based anion exchanger, particle size 10 µm pH stability: 1–14 eluent in column 4 mmol/L salicylate buffer pH 7.8 contrary to the silica-based phase also suited for fluoride analysis

VISOCOLOR Powder Pillows total Chlorine reagent set for photometric determination of total chlorine. Ideal for pool or drinking water analysis. Measuring range: 0.03-6.00 mg/L Cl2

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…

Florisil® adsorbent for column chromatography Features Hard granular magnesia silica gel: MgO 15.5 ± 0.5 % · SiO2 84.0 ± 0.5 % · Na2SO4 ≤ 1.0 % 60/100 mesh Typical application: sample preparation (SPE); clean-up of pesticide residues, separation of chlorinated…

VarioPrep (VP) columns for preparative HPLC Features Column system for preparative HPLC manufactured from stainless steel with two adjustable end fittings, e.g., for frequent use of backflushing techniques Allows compensation of a dead volume, which could result at the column inlet…

POLYGOPREP Irregular silica phases for liquid chromatography, CN (cyano, nitrile) modified Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30…

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-

NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

Ready assembled crimp closures N 8 Available with a broad variety of septa materials, most of them - aside from physical inspection - being tested analytically as well prior to assembly. Three-layer septum natural rubber / butyl / TEF or two-layer septum Red Rubber / FEP for routine analyses;…

Broad variety of closures and caps in different colors Closed top closures with different septa materials for sample storage 9 mm screw cap suitable for almost all autosamplers due to its design in form of a crimp cap Thread design not standardized; avoid mixture of vials and caps from…

QUANTOFIX Tin semi-quantitative test strips for the determination of tin(II)-ions in solutions. *TEST PROCEDURE IS INTRICATE, PRODUCT NOT RECOMMENDED FOR USE BY NON CHEMIST* Measuring range: 0-10-25-50-100-250- 500 mg/L Sn2+

pH-Fix 1.7-3.8 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 1.7-2.0-2.3-2.6- 2.9-3.2-3.5-3.8

QUANTOFIX Copper test strips for rapid and easy analysis of Copper directly on-site. Measuring range: 0-10-30-100- 300 mg/L Cu+/2+

Potassium iodate starch paper test paper allows the rapid detection of sulfite and sulfur dioxide. The paper is used in food analyzing laboratories.

QUANTOFIX Total acid semi-quantitative test strips for the determination of total acid content as expressed as g of citric acid. Measuring range: 2-2.5-3.0-3.5-4.0-5.0 g/L Citric acid

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure Wide acceptance as routine packings for very different fields of chromatography One of the first spherical silicas used in HPLC Developed in the early seventies, it became a…

Pehanon pH 2,8 - 4,6 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: 2.8-3.1-3.4-3.6-3.8-4.0-4.3-4.6

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…

Kieselguhr adsorbents for column chromatography Features Naturally occurring amorphous silicic acids of fossil origin, also known as diatomaceous earth or diatomite; purified for chromatographic applications Compared to silica, kieselguhr has a small surface of low activity →…