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Nitrogen determination The Kjeldahl method is used to determine the nitrogen content of a sample. In this analysis the sample is digested with a strong acid and the free nitrogen reacts to form ammonium sulfate. Promotions Chemical Innovations Con...

Ismatec: Tubing Selection Guide Selecting Your Tubing To complete your Ismatec pumping system order two- or three-stop color-coded tubing or nominal tubing. A variety of materials and sizes are available as well as extension tubing. Tubing Types T...

Gehaltsbestimmung von Ca und Mg in Mineralwässern Application date: 20.06.2013 page 1 from 10 Determination of isocyanate (NCO-) content Application date: 20.06.2013 page 2 from 10 Use This method is applicable for material containing reactive iso...

Kjeldahl Analysis Kjeldahl nitrogen determinations are performed on a variety of food substances. The Kjeldahl method may be broken down into three main steps: digestion distillation and titration. 1. Digestion: is accomplished by boiling a homoge...

Introduction The landscape of cfDNA research is constantly evolving with new evidence pointing to the existence of shorter fragment sizes and their importance in terms of tumor detection early disease diagnosis and genomic profiling. Circulating t...

Metal trace analysis and detection In metal analysis elemental evidence is now gathered from the tiniest traces in the ppm ppb and ppt ranges with sophisticated instrumentation like AAS ICP-OES or more recently ICP-MS. Rather than just looking – m...

Merck Supelco Standards New: Merck Supelco® standards and reference materials Additional Standards Additional Standards Amino Acid Peptide & Protein Standards Amino Acid Peptide & Protein Standards Biomarkers and Metabolomics Standards Biomarkers ...

Thermo Scientific chemicals The Thermo ScientificTM brand provides an extensive range of chemicals functional reagents organic building blocks metals and life science reagents for research and development and quality control. Discover a selection ...

Extensive refractive index standard range from (134325-165808 ŋD) A complete range of 25 standards solvent-based and sucrose-stabilised at 20°C These 25 refractive index standards can be used with any brand of refractometer. One of the most extens...

Microvolume Photometry Featured Solutions The SpectraMax® QuickDrop Micro-Volume Spectrophotometer addresses the needs of life science researchers who quantify very small amounts of DNA RNA oligos proteins and other compounds and allows you to set...

Pumping Flammable Liquids In terms of lab safety pumping flammable liquids can create hazardous conditions. Both fire and explosions can result if safe handling of materials is not adhered to by lab workers students and researchers. Examples of li...

New ACE® LC and LC-MS Complete Applications Guide Request your FREE copy today! Bringing together over 340 of the latest LC and LC-MS applications from a wide range of fields This guide includes >1600 analytes from vitamins steroids catecholamines...

FOCUS: Industrial Petrochemistry magazine Issue 01 | 2019 Servicing the petrochemical market This edition contains informative articles on standards for calibration Karl Fischer determination acid measurements by titration ultra-sensitive determin...

Media fill culture media Culture media for media fill tests. Granulated or ready to use for the pharmaceutical or food and beverage market. TSB for the pharmaceutical industry GMP requires pharmaceutical companies to test their aseptic production ...

Detection & Quantitation Detection & Quantitation Accurate concentration and purity measurements of extracted DNA and RNA are key to ensure reproducibility and significance of experimental data. Our selection of spectrophotometers for both microvo...

Sample preparation within microorganism detection Sample preparation is a critical step within the workflow of detecting and identifying microorganisms. To ensure high sensitivity and quantitative results it’s crucial to carefully select the right...