31 Results for: "EUPROMOCLEARANCECHEM00001"

Supplier: Merck

Tween® 80 (Polysorbate) for synthesis, Sigma-Aldrich®

Supplier: Merck

Tween® 20 (Polysorbate) for synthesis, Sigma-Aldrich®

Supplier: Merck

Hydrogen peroxide 30%, Suprapur® for trace analysis, Supelco®

Supplier: Merck

Methanol, SupraSolv® for gas chromatography, Supelco®

Supplier: Merck

Spectroquant Prove spectrophotometers are designed for water analysis - wastewater, process water or drinking water and beverages.

Supplier: Merck

Urea ACS, Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

Sulphanilamide Reag. Ph. Eur. analytical reagent, Supelco®

Supplier: Merck

Orthophosphoric acid 85% ≥85%, Suprapur® for trace analysis, Supelco®

Supplier: Merck

Copper Standard, 1000 mg/L, Certipur®, Supelco®, Copper, Matrix: 2-3% HNO₃, Application: ICP standards

Supplier: Merck

Isopropyl myristate for synthesis, Sigma-Aldrich®

Supplier: Merck

N,O-Bis(trimethylsilyl)trifluoroacetamide ≥98.0% (by GC) derivatisation reagent, for gas chromatography, Supelco®

Supplier: Merck

Rhodium Standard, 1000 mg/L, Certipur®, Supelco®, Rhodium, Matrix: 2-3% HNO₃, Application: ICP standards

Supplier: Merck

A range of cleansers, for manual cleaning, that have been developed to meet the cleaning requirements for glassware and small equipment in the laboratory.

Supplier: VWR Chemicals

For spectrophotometer calibration according to European Pharmacopoeia (Ph. Eur.)

Supplier: Merck

TLC plates, that feature a smooth and extremely dense plate coating, ensuring narrow bands and maximum separation efficiency with the lowest background noise. Flexible plastic sheets can easily be cut to match individual separation requirements.

Supplier: Merck

MQuant® titrimetric and colorimetric methods.

Supplier: Merck

SupraSolv® ECD and FID is specially developed for gas chromatography in combination with ECD (Electron Capture Detetor) and FID (Flame Ionisation Detector). SupraSolv® solvents offer the largest specified retention time range, a clear baseline and a minimal signal-to-noise ratio leading to reliable and reproducible analysis results.

Supplier: Merck

LiChrosolv® hypergrade is accurately tested for LC-MS suitability, and meet all the requirements of modern LC-MS ionisation methods (ESI / APCI - positive and negative mode).

Supplier: Merck

HPTLC plates, unmodified silica gel 60
This range of plates uses an optimised Merck silica gel 60 with a particle size of only 5 to 6 µm, which results in higher packing density and a smoother surface, therefore, reducing band diffusion. Less sample is required, 0,1 to 0,5 µl than for classic TLC.

Supplier: Merck

A range of cleansers, for machine washing and rinsing, that have been developed to meet the cleaning requirements for glassware and small equipment in the laboratory.

Supplier: Merck

SupraSolv® ECD and FID is specially developed for gas chromatography in combination with ECD (Electron Capture Detetor) and FID (Flame Ionization detector). SupraSolv® solvents offer the largest specified retention time range, a clear baseline and a minimal signal-to-noise ratio leading to reliable and reproducible analysis results.

Supplier: Merck

RP-2, RP-8 and RP-18 are based on silica gel 60 modified with aliphatic hydrocarbons. The chain length, in combination with the degree of modification, defines the ability to tolerate water in the solvent system and strongly affects retention. Migration time increases in the order RP-2, RP-8 and RP-18 using the same solvent composition. RP-8 and RP-18 can be run with up to 60% water in the solvent system.

Supplier: Merck

TLC plates, unmodified silica gel 60
Merck silica gel 60 has a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. This smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 250 μm and particle size of 10 to 12 µm. Two inorganic fluorescent indicators for UV detection of colourless substances.

Supplier: Merck

SupraSolv® ECD and FID is specially developed for gas chromatography in combination with ECD (Electron Capture Detetor) and FID (Flame Ionization detector). SupraSolv® solvents offer the largest specified retention time range, a clear baseline and a minimal signal-to-noise ratio leading to reliable and reproducible analysis results.

Supplier: Merck

Our NH₂, CN- and DIOL-modified silica sorbents are less polar then conventional silica phases, making them ideal for separating hydrophilic or charged substances. Our moderately polar cyano- and diol-modified silica plates can be used for both normal phase and reversed phase systems. An alternative to PEI cellulose, amino-modified NH₂ plates provide weak basic ion exchange characteristics with special selectivity for charged compounds.

Supplier: VWR Chemicals

Xylenol orange tetrasodium salt, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. indicator for metal titration

Supplier: Merck

SupraSolv® ECD and FID is specially developed for gas chromatography in combination with ECD (Electron Capture Detetor) and FID (Flame Ionisation detector). SupraSolv® solvents offer the largest specified retention time range, a clear baseline and a minimal signal-to-noise ratio leading to reliable and reproducible analysis results.

Supplier: Merck

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv® solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in gradient grade; as well as isocratic grade. This enables to minimise the gradient effect of the solvent involved.

Supplier: Merck

TLC plates, unmodified silica gel 60
This range of plates uses Merck silica gel 60 with a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. The smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 200 μm and, particle size of 10 to 12 µm. Flexible aluminium plates that can easily be cut to match individual separation requirements. Two inorganic fluorescent indicators for UV detection of colourless substances. Samples which absorb shortwave UV at 254 nm are detected due to fluorescence quenching.

Supplier: Merck

All Spectroquant® test kits can be used with the Prove range of spectrophotometers and Nova 60/60A instruments. Tests can be used not only on photometers and spectrophotometer from Merck, but also on photometers and spectrophotometers from other suppliers (programming details available on request). Spectroquant® cell test kits.