The reagents for sample preparation have an important impact on the outcome of the measurement. In modern instrumental trace analysis, any impurity can disturb the measurement so acids with low impurities should be used to minimize the interference on the instrument signal. High purity Suprapur ® acids offer the most suitable purity of wet digestion materials with low impurities during the entire minimum shelf life.
SupraSolv ® solvents are developed specially for sample preparation in gas chromatography. Ideally suited for all GC applications including sensitive detection tasks in residue and environmental analysis, SupraSolv ® solvents offer you the security and reliability needed for today’s gas chromatography applications.
A pure water solution, integrating Elix ® technology for your essential needs
Synonym: IPTG, Isopropyl β-D-thiogalactoside
LiChrosolv hypergrade is accurately tested for LC-MS suitability, and meet all the requirements of modern LC-MS ionization methods (ESI/APCI - positive and negative mode). Thanks to their low level of ionic background and low ion suppression, LiChrosolv hypergrade solvents provide high reproducibility and high ionization efficiency. The packaging material has been improved to meet LC-MS quality requirements perfectly.
The structure of graphene oxide is similar to graphene containing residual oxygen, heteroatoms and structural defects. Reduced graphene oxide (rGO) can be extracted as thin film from an aqueous solution of graphite oxide (GO) slurry. Many modern procedures for the synthesis of GO are based on the Hummers method, in which graphite is oxidized by a solution of potassium permanganate in sulfuric acid. Reduction of GO using hydraz…
General description [2-(Methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (DMAPS) is a hygroscopic, zwitterionic monomer used in the synthesis of polysulfobetaines. Polysulfobetaines are electrically neutral polymers that contain both cationic and anionic groups within a single monomer unit and feature interesting properties such as antielectrolyte behavior in aqueous salt solutions, biocompatibility, and hem…
Get instant high-quality results in environmental analysis and industrial-in-process controls
pH Measurement Easier than Ever! Premium pH Indicator Papers and Strips, Quick and Clear pH Measurements even in Turbid Solutions.
2,2-diphenyl-1-picrylhydrazyl is a free radical, which shows hydrogen acceptor ability towards antioxidants. Hence, it is commonly used in DPPH assay for measuring the antioxidant activity of different natural samples such as wine, fruits, herbal tea etc.
Curcumin is a yellow-colored polyphenol obtained from the rhizome of Curcuma longa L. It constitutes an important part of various diets and herbal medicines, especially in the Asian continent for its various salubrious effects on human health. Application Curcumin has been used: to study its effect on the consequences and mechanism involved in the suppression of human homeobox gene NKX3.1 in the prostate cancer cell…
If you want precision and reliable measurements combined with ease of use, Merck offers you a range of certified, ready-to-use Certipur® buffer solutions with exact reference pH values safely packed in sealed sachets. Preparation effort is thus reduced to a minimum: Just open the sachet and start calibrating. The buffer solutions come in small and handy single-use quantities (30 ml) and are always fresh, without residues and…
Pancreatin is a digestive enzyme used to supplement the body′s natural supply of such enzymes. Pancreatin Emprove ® Essential is suitable for pharmaceutical applications.
Levulinic acid is a precursor for the synthesis of useful intermediates such as γ-valerolactone, ethyl levulinate, pentanoic acid and 2-methyl-tetrahydrofuran. Derivatization and esterification of levulinic acid results in potential biofuels. It can also be used in: The preparation of catalytic composite to synthesize 5-hydroxymethylfurfural and furfural. The synthesis of a commercial fragrance, fraistone. The syn…
Nitric acid/Dipicolinic acid concentrate, HNO3 17 mM and Dipicolinic acid 17 mM in water, IC eluent concentrate (10x) for Metrosep C 6
1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®
Milli-DI® Laboratory Water Purification System The Milli-DI system is a compact and easy-to-use lab water purification system that instantly provides deionized water (resistivity >1 MΩ·cm) directly from tap water. Suitable for users requiring low volumes of purified water, 3 to 5 L/day, this battery-powered system comes with everything needed for easy installation in the lab (includes tubing for ½" tap fitting). Operation and…
Introducing a vacuum filtration system that makes sample preparation easy: the EMD Millipore Samplicity filtration system with Millex Samplicity membrane filters. With the Samplicity® filtration system and Millex Samplicity® membrane filters, EMD Millipore has transformed sample preparation forever. Advantages of the EMD Millipore Samplicity filtration system include: • Higher throughput with simultaneous vacuum filtration…
