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Gehaltsbestimmung von Ca und Mg in Mineralwässern Application date: 16.05.2013 page 1 from 7 Determination of the Chemical Oxygen Demand COD according to DIN 38 409 part 41 Application date: 16.05.2013 page 2 from 7 Use Determination of the chemic...

Solutions For TOC Analysis Total Organic Carbon (TOC) Analysis Solutions for Detecting Organic Contamination in Water Dissolved organic carbon is oxidised by sodium persulphate reagent and CO2 produced is measured by spectrophotometry. Many other ...

Choosing laboratory plasticware with the right chemical compatibility By DWK Life Sciences Plasticware is required for a variety of laboratory processes but an understanding of plastic chemical compatibility - its physical properties and how this ...

Kjeldahl tablets 20 different compositions for nitrogen determination A comprehensive range of ‘ready to use’ tablets to meet the optimal requirements for the sulphuric acid decomposition phase of the Kjeldahl method for nitrogen determination. Av...

Kjeldahl 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 homogeneous sam...

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...

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...

Sample Preparation It is essential to obtain accurate results. VWR offers a large choice of products from mixing and grinding to automatic digestion and distillation systems. Digestions units used for the determination of nitrogen COD and trace me...

15 Common Laboratory Chemicals and How to Arrange Them To operate a successful laboratory you must select the proper chemicals to support safe and effective procedures. Depending on the goals some chemicals will work better than others cutting dow...

Toxic and corrosive materials Always treat all chemicals as potential poisons and be aware of properties/precautions before use. Avoid direct contact with any chemical and never breathe in solvent vapours. Examples of chemicals giving off vapours ...

Reduce Complexity and Focus on Your Core Science Your Role Your Challenge Our Services Portfolio Resources About Us Contact Us Essential but non-core activities like research supplies management preparing experiments and basic protocol-driven work...

Gehaltsbestimmung von Ca und Mg in Mineralwässern Application date: 28.2.2012 Seite 1 von 9 Determination of FOS TAC value in Biogas plants Application date: 28.2.2012 Seite 2 von 9 Use The determination of the volatile organic acids (FOS) and tot...

An Overview of Proteomics Proteomics is the study of proteins in a biological system that offers the required understanding of an organism’s structure and function compared to genomics. Proteins are the functional units of cells performing various...

An Overview of Protein Expression Systems Protein expression systems play a vital role in facilitating essential biological functions. This article highlights the significance of these systems and their contribution to the expression of recombinan...

Biopharmaceutical Keeping the 'Express' in Protein Expression NEED A biopharmaceutical company with novel technology for rapid expression of protein therapeutics in cellular-free systems asked VWR Custom Manufacturing Services to manufacture a com...

Solutions to manage complexity in global single-use supply chain for vaccines manufacturing Webinar On demand Replay Single-use systems have been proven to enable a more flexible cost-effective approach to manufacturing monoclonal antibodies (mAbs...