Developing a fast and accurate screening method for detecting a wide range of toxic compounds is an important task for food safety. HR/AM spectrometry overcomes the screening limitation via selected reaction monitoring (SRM) on triple stage quadrupoles, because specific compounds need not be selected before analysis. Highly confident ID is achieved by accurate mass measurement of both precursor and fragment ions. A novel UHPLC-MS/MS method employing the Q Exactive benchtop Orbitrap mass spectrometer is proposed here for the study of possible spiked toxic agents into apple juice.

Inorganic and organic arsenic compounds have very different toxicities, and therefore speciation analysis is needed to assess the potential health risk posed by the food product. Here two inorganic and four organic arsenic species are determined in an apple juice sample using IC coupled to iCAP Q ICP-MS. Arsenic species are first separated by IC using an ammonium carbonate gradient on an IonPac AS7 column. Then the eluting species are detected and quantified by the ICP-MS down to ng/g concentrations. Arsenic speciation is also demonstrated in organic brown rice syrup (OBRS) in AN43126.

Sugar alcohols are used in confectionary products because they impart a sweet taste without the calories associated with sugars. Their use in foods is regulated due to their laxative and diuretic properties. This application note uses the Dionex CarboPac MA1 column and pulsed amperometric detection to determine sugar alcohols without the need for derivitization or postcolumn reagents.

This application presents a method that detects and quantifies total inorganic arsenic (Arsenate As(V) and Arsenite As(III)) in fruit juices using a high-pressure capillary IC system with suppressed conductivity detection (CD), and with a high-resolution 4 µm particle anion–exchange column AS11-HC-4μm.

The determination of organic acids plays an important fole when testing the authenticity of fruit juices and wines. This application describes a method to determine organic acids in fruit juices and wines using IC with suppressed conductivity detection.