Application Notes: Mass Spectrometry
Are There Official Methods for Food and Beverage Product Origin, Authenticity, and Label Claims?
August 29th 2019Standardized methods (or official international methods) exist for stable isotope analysis of food and beverage samples and are aimed at protecting product origin, authenticity and label claims.
This work will demonstrate a simple methodology using automated solid-phase extraction (SPE) and HPLC coupled with mass spectrometric detection. This work will demonstrate a simple methodology using automated solid-phase extraction (SPE) and HPLC coupled with mass spectrometric detection. This work will demonstrate a simple methodology using automated solid-phase extraction (SPE) and HPLC coupled with mass spectrometric detection.
Real-Time, Broad-Spectrum Odor Analysis Using SIFT-MS
March 1st 2016The sensitive, selective, and real-time analysis characteristic of the SIFT-MS technique provides simple, robust, and continuous analysis of extremely diverse odor compounds at trace levels in air. This application note illustrates instantaneous, broad spectrum odor analysis with monitoring data from a chicken meat production facility.
Sample Preparation for NIR Analysis
September 1st 2011A 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.
Temperature Induced Changes in Clays Measured by Diamond ATR FT-IR Spectroscopy
September 1st 2011Increasing 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.
Analysis of 258 Pesticides in Vegetable Matrix using Triple Quadrupole GC-MS/MS
September 1st 2011There 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.
Multi-Residue Pesticide Analysis Using a GC Triple Quadrupole Mass Spectrometer
February 11th 2011There 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.