Topic quality assurance

Products quality assurance

NIR-Online in focus - online process control for a constantly high product quality

Smooth running processes need reliable sytems. With NIR-Online you combine maximum return with innovative quality assurance more

New Spectroquant® test kits for COD analysis in waste water

Merck Millipore introduces 2 new COD test kits with broader measurement range and greater tolerance of chloride more

News quality assurance

• Food analysis: Know what’s inside

  Given all the new scandals about prohibited and hazardous substances, the quick, easy and accurate analysis of food continues to increase in importance. At analytica 2012, to be held in Munich from April 17 – 20, there will be a number of new exhibitor developments on the topic of food analysis as w more

• Lab21 Extends CPA Accreditation

  Lab21 Limited has announced that its Clinical Laboratory Division has extended its Clinical Pathology Accreditation (CPA) scope to include Molecular Biology and Virology in addition to Biochemistry. The accreditation was awarded by Clinical Pathology Accreditation (UK), the quality assurance agency more

• Sartorius expands portfolio for process analytics

  Sartorius has extended its portfolio of instruments for laboratory and process analytics. Sartorius will collaborate with the measurement technology firm Schmidt + Haensch, and add the latter’s refractometers to its line of products. Sartorius already unveiled its first refractometers for lab appli more

White papers quality assurance

• Chemometric Spectroscopy
  

  Chemometric Spectroscopy is the term used to describe the direct combination of a spectroscopic measurement with a chemometric data evaluation procedure, typically a multivariate statistic method, so providing quick and reliable deduction of the qualitative and quantitative properties of a sample from its spectrum. A multi-linear regression (MLR) or partial least squares (PLS) regression is usually used for the quantitative determination of individual or combined parameters, while substance identification generally relies on techniques such as discriminant or cluster analysis. more

• UV/Vis/NIR Spectrometry for the Film Thickness Determination of Transparent Films and Layers
  

  Within nearly all branches of industry we find products, which are coated with thin transparent layers to improve the surface features: Window sheet glasses obtain changes in reflection and absorption behavior, ceramics are treated with coatings to lower water adhesion, coatings on metals create corrosion resistance or better sliding factors. Transparent coatings play also a major role in the semiconductor business. One of the important features to be determined and controlled is the thickness of the layers to balance performance and material input during development and production more

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