295 Results for: "MERCK MILLIPORE"

Supplier: MERCK MILLIPORE

3-缩水甘油醚氧基丙基三甲氧基硅烷 用于合成, Sigma-Aldrich®

Supplier: MERCK MILLIPORE

乙酸 glacial, anhydrous 100% (by alkalimetry), EMSURE® Reag. Ph. Eur., ACS, ISO for analysis, Supelco®

Supplier: MERCK MILLIPORE

BIS-TRIS, Millipore®

Supplier: MERCK MILLIPORE

氯化钴(II)六水合物, EMSURE® Reag. Ph. Eur., ACS for analysis, Supelco®

Supplier: MERCK MILLIPORE

Histosec® pastilles is an embedding medium for histology of samples of human origin. It is a paraffin enriched with polymers, also available without the addition of DMSO (dimethyl sulfoxide). DMSO increases the rate of penetration of paraffin and provides additional preservation of the tissue structures. Its melting range is between 56 - 58 °C and, within this range any specimen can be processed without fear of damage irrespective of the method used.

Supplier: MERCK MILLIPORE

Monolithic silica technology: A new age in chromatography. Chromolith® columns are based on silica so existing methods can be easily transferred with only minimal investment in new method development work. 'Sol-Gel' technology allows highly porous monolithic rods of silica to be formed. These feature a bimodal pore structure provides a unique combination of macropores and mesopores.

Supplier: MERCK MILLIPORE

Calcium Standard, 1000 mg/L, Certipur®, Supelco®, 钙, 基质: 0,5 M HNO₃, 应用: AAS standards

Supplier: MERCK MILLIPORE

Aquatex is used for e.g. LEUCOGNOST stained specimens. For preservation purposes and subsequent optimal microscopy, the stained sections are normally mounted using a suitable mounting agent and covered with a cover glass.

Supplier: MERCK MILLIPORE

Materials for the precise calibration and monitoring of pH meters.

Supplier: MERCK MILLIPORE

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 MILLIPORE

These test strips contain special indicator dyes that are covalently bound to the reagent papers which are then adhered to the plastic strips.

Supplier: MERCK MILLIPORE

EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Supplier: MERCK MILLIPORE

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.

Supplier: MERCK MILLIPORE

For full details of specification and hazards please see www.vwr.com or the VWR Chemicals catalogues.

Supplier: MERCK MILLIPORE

Zinc Standard, 1000 mg, Titrisol®, Supelco®, 锌, 基质: 2 M HNO₃, 应用: AAS standards

Supplier: MERCK MILLIPORE

Silver Standard, 1000 mg/L, Certipur®, Supelco®, 银, 基质: 0,5 M HNO₃, 应用: AAS standards

Supplier: MERCK MILLIPORE

甲酸 98 - 100% 98-100%, EMSURE® Reag. Ph. Eur., ACS for analysis, Supelco®

Supplier: MERCK MILLIPORE

Arsenic Standard, 1000 mg/L, Certipur®, Supelco®, 砷, 基质: 0,5 M HNO₃, 应用: AAS standards

Supplier: MERCK MILLIPORE

Safety note: These solutions are generally in acid solution.

Supplier: MERCK MILLIPORE

Iron Standard, 1000 mg/L, Certipur®, Supelco®, 铁, 基质: 0,5 M HNO₃, 应用: AAS standards

Supplier: MERCK MILLIPORE

硫酸锌七水合物, EMSURE® Reag. Ph. Eur., ACS, ISO for analysis, Supelco®

Supplier: MERCK MILLIPORE

Titriplex® III ACS, ISO, Reag. Ph. Eur. 分析试剂, Supelco®

Supplier: MERCK MILLIPORE

过硫酸铵, EMSURE® ACS, Reag. Ph. Eur. for analysis, Supelco®

Supplier: MERCK MILLIPORE

1-丙醇, LiChrosolv® for HPLC, Supelco®

Supplier: MERCK MILLIPORE

磷酸氢二钠二水合物 ≥99.5% (by acidimetry), EMSURE® for analysis, Supelco®

Supplier: MERCK MILLIPORE

Potassium bromide is transparent from the near UV to long wave IR wavelengths. In IR-spectroscopy, solid samples which are difficult to melt or dissolve in any suitable IR-transmitting solvent, are analysed by grinding with potassium bromide powder, and pressing into a disc. This procedure has a high quality demand of the used potassium bromide. Potassium bromide Uvasol® is adjusted to a mean particle size of 150 μm. This is sufficient for the preparation of perfectly good pellets without the need for further pre-treatment and the associated risk of contamination. It also retains its powdery form over a period of years if stored in an airtight condition. Its physical suitability for pelletising is checked by a special application test and its chemical purity established by full spectrum FT-IR analysis.

Supplier: MERCK MILLIPORE

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).

Supplier: MERCK MILLIPORE

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 minimises the gradient effect of the solvent involved.

Supplier: MERCK MILLIPORE

双氢氧化乙二胺铜(II) 1 mol/l (3 N) in aqueous solution for measuring the viscosity of cellulose acc. to DIN 54270, Supelco®

Supplier: MERCK MILLIPORE

氯化钾 3 mol/l (3 N) in aqueous solution, Supelco®