pH-Fix 0-14 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 0-1-2-3-4-5-6-7- 8-9-10-11-12-13-14

VISOCOLOR ECO Sulfide colorimetric test kit for the determination of Sulfide in water samples measuring range: 0.1-0.8 mg/L S2- __UN 3316 Chemical kit 9 II 0.027 L ADR/GGVSEB M11 (E) ADR 3.3.1/251: LQ PAX 960 10 Kg CAO 960 10 Kg

Features More than 50 different sationary phases available e.g., silica gel based: unmodified, C8, C18, NH2, CN; Polyermic material: HR-X, HLB, PA; mixed-mode, special combinations, aluminum oxide, kieselguhr (XTR) etc. NP, RP, ion exchanger and for special applications Different…

QUANTOFIX Molybdate semi-quantitative test strips and reagents for the determination of molybdenum. Measuring range: 0-5-20-50-100-250 mg/L Mo6+

pH-Fix 4.5-10.0 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 4.5-5.0-5.5-6.0-6.5- 7.0-7.5-8.0-8.5-9.0-9.5-10.0

QUANTOFIX Peroxide 100 semi-quantitative test strips for the determination of hydrogen peroxide (H 2 O 2 ) and peroxides in solutions. Measuring range: 0-1-3-10-30-100 mg/L H2O2

Lead acetate paper allows the quick and easy detection of hydrogen sulfide. No dangerous goods according transport regulations.

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…

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.

Purpose of derivatization Improved volatility, better thermal stability or a lower limit of detection in GC Prerequisite: quantitative, rapid and reproducible formation of only one derivative Halogen atoms introduced by derivatization (e.g., trifluoroacetates) for specific detection…

VISOCOLOR ECO Nitrite colorimetric test kit for the determination of Nitrite in water samples measuring range: 0.02-0.5 mg/L NO2-

Materials kit for scientific education This kit is prerequisite for the separations with kits F1, F2 and F3. In addition, it serves as basic equipment for the individual study of further thin layer chromatographic experiments.

POLYGOPREP Irregular silica phases for liquid chromatography, SiOH, unmodified for normal phase application 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,…

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…

Purpose of derivatization Improved volatility, better thermal stability or a lower limit of detection in GC Prerequisite: quantitative, rapid and reproducible formation of only one derivative Halogen atoms introduced by derivatization (e.g., trifluoroacetates) for specific detection…

Purpose of derivatization Improved volatility, better thermal stability or a lower limit of detection in GC Prerequisite: quantitative, rapid and reproducible formation of only one derivative Halogen atoms introduced by derivatization (e.g., trifluoroacetates) for specific detection…

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

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…

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…

pH-Fix 7.9-9.8 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 7.9-8.3-8.6-8.9- 9.1-9.4-9.8

This test paper allows the quick and easy detection of hydrocyanic acid and cyanides in aqueous solutions and extracts. They are for example formed in the manufacture of fruit brandies and are toxic even in low concentrations. To detect cyanides in solution, a drop of concentrated sulfuric acid is…

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

Ready assembled crimp closures N 13 and plain caps with no liner Center tear off cap for tamper-evident sealing of a sample vial Molded Butyl/PTFE septa with only centrically laminated PTFE for excellent sealing on the glass rims To be crimped with MACHEREY-NAGEL manual / electronic…

Dipyridyl paper test strips allows the sensitive and specific detection of Fe(II) ions. Even small amounts of Fe(II) can safely be detected in presence of large amounts of Fe(III).

Pehanon pH 5,2 - 6,8 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; 5.2-5.5-5.7-5.9-6.1-6.3-6.5-6.8

With pH-Fix test strips, you can test the pH value quickly and easily directly at the point of interest. The strips are ready to use at any time and don’t need any calibration, set-up or maintenance. Therefore, pH determination with pH-Fix test strips is very easy, regardless of your…

VISOCOLOR ECO Detergents anionic test kit for the determination of Detergents in water samples measuring range: 0.1-5.0 mg/L MBAS __UN 3316 Chemical kit 9 II 0.100 L ADR/GGVSEB M11 (E) ADR 3.3.1/251: LQ PAX 960 10 Kg CAO 960 10 Kg

For storage of powdery samples Usable volumes from 5 to 25 mL Glass of 3rd hydrolytic class, since storage of solid samples is generally not very demanding Snap caps for both neck sizes available

Strong quat. ammonium modified polymeric anion exchanger for SPE Features Base material spherical PS/DVB copolymer, pore size 55–65 Å, particle sizes 45 µm or 85 µm (standard) very large specific surface 850 m2/g, pore volume 1.4 cm3/g, pH stability 1–14 …

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

NUCLEOSHELL® core-shell silica phases for HPLC NUCLEOSHELL® Core-shell technology provides Better resolution at lower back pressure and shorter retention time Solid core of silicon dioxide Homogeneous shell of porous silica Highest efficiency compared to traditional…

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…