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Are Natural Products Delivering? Experiences and Recommendations from 27 Screening Campaigns
04 May 2010: In this application note from BioFocus, microbial strain subfractions are generated and used in high-throughput screens (HTS) for analysis with regard to diversity, selectivity and strain origin. Natural compounds were identified during the follow up of subfraction screening programs and their chemical properties have been analyzed. Searches in natural product databases revealed that 135 of the 645 identified natural compounds are novel compounds.
BioFocus
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Minimizing Errors Through Standardization of GXP and R & D Laboratory Measurement Processes
29 Sep 2009: This application note discusses a procedure for reducing errors and maintaining document consistency while working with electronic devices. The Waters® Serial Device Solution (SDS) represents a standardized interface for interacting with common electronic measurement devices (e.g., balances, pH meters, titrators, etc.) that can eliminate wasted effort in re-transcribing instrument readouts, improve laboratory productivity and improve data quality by eliminating transcription errors.
Waters
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The pH of Pure Water
04 Nov 2008: pH is a widely measured parameter of water quality, and many scientists naturally want to know the pH of the pure water that they are using. However, the pH of pure water is not easy to measure and is not a consistent guide to pure water quality.
ELGA LabWater
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Oxidative stability of fatty acid methyl esters (FAME, biodiesel)
08 Oct 2007: The oxidative stability of fatty acid methyl esters can be determined with the rancimat method according to DIN EN 14112.
Metrohm AG
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Fluoride content of cement and clinker
08 Oct 2007: Using a Fluoride ISE (Ion-Selective Electrode), the fluoride content in cement or clinker can be determined using direct potentiometry.
Metrohm AG
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Determination of fluoride with the ion-selective electrode
31 Aug 2007: This application bulletin describes the application of the Ion-selective Fluoride Electrode in determining the amount of fluoride. Sample preparation is discussed for applications of fluoride in bone, carbonated beverages, dental enamel, plants and in other systems.
Metrohm AG
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