Application Notes - Mass Spectrometry

Jul 01, 2015
Special Issues
A rapid, accurate, and reproducible method was developed for high-throughput testing of nicotine, cotinine, trans-3’-hydroxycotinine, nornicotine, norcotinine, and anabasine in urine. Data show that a fast and highly efficient analysis of these basic compounds can be achieved with the Raptor Biphenyl column using standard reversed-phase LC–MS mobile phases that are compatible with a variety of LC–MS instrumentation.
Jul 01, 2015
Special Issues
A rapid, accurate, and reproducible method was developed for high-throughput testing of nicotine, cotinine, trans-3’-hydroxycotinine, nornicotine, norcotinine, and anabasine in urine. Data show that a fast and highly efficient analysis of these basic compounds can be achieved with the Raptor Biphenyl column using standard reversed-phase LC–MS mobile phases that are compatible with a variety of LC–MS instrumentation.
Sep 01, 2011
Application Notebook
By Spectroscopy Editors
There are nearly one thousand pesticides used in modern agricultural practice, and the residues of pesticides in the food from plant origins have been an increasing concern for consumers worldwide. Monitoring programs based analytical methodologies are established to ensure that the pesticide levels in plant foods are in compliance with national and international laws. However, the diversity of pesticides and complexity of food sample matrix present ongoing challenges for analytical chemists to meet the increasingly stringent requirements for sensitivity, precision, and throughput.
Sep 01, 2011
Application Notebook
Increasing temperature can cause chemical changes, alter reaction rates, concentrate an aqueous sample, or evaporate a solvent. These transformations can be readily monitored by diamond ATR spectroscopy. This note explores the use of a diamond ATR to examine heat-induced changes in the clay.
Sep 01, 2011
Application Notebook
A much discussed issue related to near infrared analysis (NIR) is the necessity of sample preparation. Ground and unground samples of wheat were analyzed to determine how truly necessary it is to homogenize samples before NIR analysis. The new Retsch TWISTER mill, specifically designed for NIR sample preparation, was utilized for this comparative study.
Feb 11, 2011
Application Notebook
There are currently more than 1000 pesticides in use worldwide in the production of foodstuffs. There is a significant risk to human health and the environment due to increased pesticide use, poor agricultural practices and illegal use.
Sep 01, 2010
Application Notebook
The amaZon series is the next step in Bruker Daltonics' family of ion trap mass spectrometers.
Feb 01, 2010
Application Notebook
By Spectroscopy Editors
Thermogravimetric analysis (TGA) measures the change in the weight of a sample as a function of temperature.
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