ChemEurope.COM Articles

Sensible and self-monitoring

For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic ...

Innovative column technology for liquid chromatography

Fast, efficient and cost saving chromatography of various samples by application of a liquid stationary phase. Termination of disadvantages of the solid phase material used in classical chromatography.

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 ...

Dynamic Light Scattering - an Important Tool for Protein Crystallography and Nanotechnology

Dynamic Light Scattering (DLS) is an established technique in the field of protein crystallography. DLS is used to measure hydrodynamic sizes, polydispersities and aggregation effects of protein samples. These are important parameters for the ...

On-line particle analysis in wet processes

Fully automated particle size measurement technology integrated with existing plant control platforms for ease of use has the potential to deliver numerous benefits. At plants where a switch to on-line analysis has been made it is frequently easier ...

Measuring particle size using modern laser diffraction techniques

Many different techniques have been devised for determining particle size distribution, but for a wide range of industries laser diffraction has become the preferred choice. Laser diffraction, alternatively referred to as Low Angle Laser Light ...

Particle shape - an important parameter in pharmaceutical manufacturing

The advent of rapid and reliable measurement technologies, together with the FDA's PAT (Process Analytical Technologies) initiative, has increased the use of particle shape analysis within the pharmaceutical industry. Particle shape, like particle ...

Making the connection - particle size, size distribution and rheology

A number of factors influence the rheology of a suspension, including particle size, particle size distribution, and the volume fraction of solids present. Here we examine the relationship between rheology and particle size parameters. Commonly used ...

Measurement of Nano particles and Proteins

Colloid emulsions in their native environment require particle size determination in high concentration since there are concerns about changes in sample morphology upon dilution eg break up of aggregates. For proteins and other samples with very low ...

Gr�ger & Obst Analyzers for Simultaneous Measurement of TOC and VOC

To determine the degree of organic pollution of waste water, labs prefer the kind of analytical test methods that yield useful results without being costly or demand the use of large-scale equipment. To achieve this end, labs employ methods that are ...

Outsourcing to India and China: Cultural diffculties with the perception of costs

Aparna Singh (AS), Program Manager for the Chemicals Materials and Foods team at Frost & Sullivan India, recently caught up with Mr. Steve Fishwick (SF), Projects Group Director, AstraZeneca at the Frost & Sullivan's Global Life Sciences Summit 2006 ...

Wyeth 'learns and confirms' in India

Aparna Singh (AS), Program Manager with Frost & Sullivan's Chemical Materials and Foods team caught up with Dr. Michael Kolb (Dr. MK) at Frost & Sullivan's Opportunities in Lifescience Molecules: Global Partnership Summit 2006. This annual summit ...

Do you see the complete picture?

Gel permeation chromatography (GPC) or also named size exclusion chromatography (SEC) is the most often used method for determining the molecular weight of natural and synthetic macromolecules. One specific strength of this method lies in the fact ...

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 ...

The Determination of Hazardous Substances According to RoHS and WEEE Directives

1st July 2006 is an important deadline for the electro- and electronics industries. This date bans hazardous substances like lead, cadmium, mercury, hexavalent chromium and polybrominated biphenyls and diphenyl ethers from electro- and electronic ...

Good Reasons to Use ATR Libraries

Transmission spectroscopy was the only method in general use until the early 1960s. The first applications of attenuated total reflection (ATR) or internal reflection spectroscopy were reported independently by Fahrenfort and Harrick. Especially ...

Sum parameters "on trail"

Identification of organic pollutants in wastewater is essential for performance evaluation, construction and operation of a wastewater treatment plant. Several parameters are currently used in wastewater analysis applications. The advantages of TOC ...

Flash point testing - The definitive test method

Classifying the flammability of fuels and other materials by their flash point value has been an established practice for more than 100 years. Today mandatory international and national regulations are set by bodies such the UN, IATA, EPA, EU, and ...

Accurate Mass and TIPTM: Two Dimensions for Elemental Composition Determination: microTOFTM Featuring Unique TIPTM

The ESI-TOF mass spectrometers micrOTOF and micrOTOF focus do not only provide accurate mass measurements but additionally describe the True Isotopic Pattern TIPTM. For molecular formula generation this unique combination significantly reduces the ...

Beyond Quality Control

Product quality in any arena can be traced back to variations in parts, materials, people, and processes. And since it has been observed that all work can be broken down into processes, all processes, manufacturing or administrative in nature, have ...