Jun. 29, 2011

Laser Particle Size Measuring Instruments

In modern quality assurance, laser diffraction is indispensable today, for the simple, quick and dependable determination of the particle size. The areas of application here cover practically all branches of industry from the food industry to the building materials industry up to the application in the chemical industry. For example, laser diffraction can be found in the receiving, but also in the pre-delivery inspection of base materials, in which their particle size is either significant for the processability or directly for the quality and the therefore related end product. moreMay. 30, 2011

Battery Safety: Adiabatic Calorimetry for Advanced Battery Testing

Lithium ion battery technology offers many advantages in portable power application but one major concern is safety - thermal runaway of the device in both normal and abusive situations. moreApr. 12, 2011

Transfer of USP-based HPLC Methods for Pantoprazole Sodium to UPLC

HPLC is a commonly used analytical method for assaying and purity controlling of active pharmaceutical ingredients („API's") in the pharmaceutical industry. Method transfer to the latest technologies can be time-consuming and are therefore rarely performed for the improvement of validated methods. However, the transfer of established methods to a UPLC (ultra performance liquid chromatography) system can be worth the investment. In the reported case such an investment was rewarded with surprising savings in analysis time, operational costs and improved resolution. moreMar. 26, 2011

Comminution of Purple Moor-Grass

Especially in northern Germany occurs the Purple Moor Grass (Molinia Caerulea). Interesting for research are the absolute contents and the ratios of carbon and nitrogen in the plant material. For the determination of these values mostly carbon and nitrogen analyzers are utilized. The task in this application note was completed with the Pulverisette line of Fritsch-Mills. moreMar. 10, 2011

Complex Microscopy Without Compromise

Microscopy systems are becoming increasingly complex in order to meet the growing demands of a broad range of research requirements. With uses in both medical and biological sciences, these microscopy systems are composed of a variety of components, which must all be optimized in order to produce a clear, highly resolved image. As such, advanced techniques including fluorescence wide field and confocal microscopy are often inaccessible to less experienced users. moreFeb. 09, 2011

Pesticide and Antibiotics Residues in Food for Example Tomatoes

Pesticides in the broader sense are considered all crop protection products and all other pesticides. More understandable for the "general public" maybe become the terms with the following examples: to combat blight on grape vines a crop protection product is used, and to combat worms in apples, pears or also the cankers in cabbage, a pesticide is used. These substances are applied directly onto the plant and also pass through the soil along with the nutrients, inside the plant and therefore inside the fruits. moreJan. 24, 2011

Customized Multi-tool Laboratory Robots

Laboratory automation usually comprises single devices or partial processes. The integration of entire synthesis procedures into a single automation platform still represents an exception. The required adaptation raises the question whether to adapt the process to the automation, or the automation to the process. moreJan. 03, 2011

Particle Size Distributions

Laser diffraction is the most frequently used measurement technique for the analysis of particle size distributions in the range 1 micron to 1 mm in the context of quality control. Modern laser diffraction systems offer some convincing advantages such as short measurement times, easy operation and reproducible analysis results. However, they also have various disadvantages: Even if the instruments have been calibrated and validated, an absolute particle size measurement is not possible. more