Determination

Products Determination

Real Time TOC Analytics

The high measuring performance of the Thornton 5000TOC sensor provides very short response times in combination with easy handling and low maintenance more

Videos Determination

Real Time TOC Analytics

The 5000TOC sensor utilizes the well-proven principle of dynamic UV oxidation. Compared to batch oxidation the 5000TOC provides a real measuring result every 3 seconds. The reaction time is extremely short. A change of the TOC content is detected within 1 minute. Hence, the water quality is really c more

News Determination

• An end to chasing structures that were never there

  Research describes a rapid computational method for identifying incorrect molecular structures that have been mistakenly determined using misassigned NMR signals. Ariel Sarotti, a scientist in Argentina, has developed a tool that combines calculated and experimental 13C NMR data to flag up incorrect more

• LUM is nominated for the Innovation Award Berlin-Brandenburg 2012

  LUM GmbH is nominated for the Innovation Award with the new Adhesion Analyser LUMiFrac. From more than 100 applications LUM was nominated into the final five candidates. With the LUMiFrac® LUM, currently known as market leader in innovative analysers for direct and accelerated stability analysis and more

• U of T Researchers Develop “Hi-Def” Copy Number Variation Decoder

  University of Toronto researchers have developed a new “high definition” computer program to analyze human DNA and more accurately detect genetic variants that affect individual traits like disease susceptibility and varying drug responses. A multi-disciplinary team combining computer science and b more

White papers Determination

• Analysis of the DNA Methylation Patterns at the BRCA1 CpG Island
  

  Germ-line alterations of the BRCA1 gene confer a lifetime risk of 40% for ovarian cancers and of 40%-80% for ­breast cancers. It is likely that BRCA1 acts as a tumor suppressor gene. BRCA1 involvement in breast cancers does not seem to be restricted to familial cancers. Despite the absence of somatic mutations in the breast tissues, a down regulation of BRCA1 expression is associated with malignancy in human sporadic breast cancers. more

• Polyolefins: Determination of Molecular Weight and Branching Structure by GPC/SEC

  Polyethylene and Polypropylene are so-called Polyolefins. They are produced in large amounts every year. Depending on the process and catalyst used linear or branched polymers can be produced. In case of e. g. Polyethylene there are at least three polymer types: HDPE (High Density Polytheylene), LDPE (Low Density Polyethylene) and LLDPE (Linear Low Density Polytehylene). HDPE and LLDPE are made of linear or only slightly branched macromolecules with a high level of crystallinity. They form a dense structure in the final product. LDPE is made of highly branched molecules that form a final structure with low density due to a low degree of crystallinity. more

• Field-Flow Fractionation - The Universal Separation Principle for Particle and Macromolecule Characterization
  

  High molecular weight polymers, bio molecules or particles in a range of a few nanometers up to several microns are more and more important in science and technology. Many applications are based on the specific properties of these materials. For this reason, an exact knowledge of the molar mass or particle sizes distribution is essential for later application as well as for optimization of the production processes or quality control. In addition the knowledge about the chain structure of macromolecules or biopolymers as well as about the shape of particles is often necessary. For this reason those samples, which often can be very complex systems, have to be separated according to parameters such as e.g. hydrodynamic volume or molecular weight. After the separation process the resulting narrow dispersed fractions are detected with different techniques. more

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