MACHEREY-NAGEL

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...

pH-Fix 5.1-7.2 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 5.1-5.4-5.7-6.0- 6.3-6.6-6.9-7.2

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 is the ideal base...

Ensure a secure and contamination-free seal on your vials with these Stoppers for Crimp Caps, N 20. Tailored to meet rigorous laboratory standards, these stoppers maintain the integrity of sensitive samples and substances during storage or transport. With their precision design, they offer reliable...

VISOCOLOR Powder Pillows Silica HR reagent set for photometric determination of Silica in the high range. Ideal for boiler feed water analysis of low to medium pressure boilers. Measuring range: 2-210 mg/L SiO2 Set of Molybdate-, Citirc acid- and Acid reagent

QUANTOFIX chlorine dioxide 15 semi-quantitative test strips for the determination of chlorine dioxide. Measuring range: 0-0,25-0,5-1-3-5-10-15 mg/L ClO2

GC injection port septa Standard quality Septum grade: Standard septa (ST) Material: beige silicone Thickness: 4 mm Hardness: 60° shore A Septum grade: High temperature septa (HT) Material: red non-bleeding silicone Thickness: 3 mm Hardness: 60° shore A Max. Temperature: 320 °C Septum...

Combination phase for SPE analysis of PAHs from water containing humic acids Features Special combination phase: aminopropyl phase for removal of interfering humic acids octadecyl phase for enrichment of PAHs Recommended application: PAHs from water containing humic acids

QUANTOFIX Nitrite 3000 semi-quantitative test strips for the determination of high concentrations of nitrite (NO 2) in solutions. Measuring range: 0-0.1-0.3-0.6-1-2-3 g/L NO2-

Broad variety of Headspace vials for almost all autosamplers; most popular ones are: 702924 (10 mL) / 702263+702263.2 (20 mL) with rounded bottom for CTC, Gerstel, Shimadzu and equivalent ones in combination with magnetic/bi-metal closures N 20 702917 (6 mL) / 70254/702540 (20 mL) with beveled top...

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...

QUANTOFIX Arsenic Sensitive test strips for rapid and easy analysis of Arsenic directly on-site. Measuring range: 0-0.005-0.01-0.025-0.05-0.1- 0.25-0.5 mg/L As3+/5+

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...

POLYGOPREP Irregular silica phases for liquid chromatography, modified for RP 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, 20 µm, 30 µm, 50 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 lifetime...

VISOCOLOR Powder Pillows Sulfate reagent set for photometric determination of Sulfate. Ideal for drinking water and waste water samples. Measuring range: 15 - 200 mg/L SO42-

Pehanon pH 1,0 - 12,0 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: 1-2-3-4-5-6-7-8-9-10-11-12

VISOCOLOR Powder Pillows Silica LR reagent set for photometric determination of Silica in the low range. Ideal for boiler feed water analysis of high pressure boilers. Measuring range: 0.02-2.10 mg/L SiO2 Set of Molydate-, Citric acid- and Ascorbic acid reagent

Features Reversed phase nano silica impregnated with Cu(II) ions and a chiral selector (a proline derivative, DP 31 43 726 and EP 0 143 147) Separation based on ligand exchange, i. e. formation of ternary mixed-ligand complexes with the Cu(II) ions differences in the stability of the diastereomeric...

Easy and quick to seal vial / closure combination Fire-polished neck Main application: for non-critical HPLC analyses Only suitable in cases of low requirements on tightness, as the plugs have no elastomeric sealing element PE stoppers with a diaphragm for safe penetration of the needle

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.

Features Silica 60, specific surface (BET) ~ 500 m2/g, mean pore size 60 Å, specific pore volume 0.75 mL/g, particle size 5–17 µm Outstanding hardness and abrasion resistance due to an optimized binder system Increased separation efficiency due to an optimized particle size...

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 after some time...

Untreated capillaries Recommended application: Capillary electrophoresis Preparation of capillary columns Capillary LC applications