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AB000487: Determination of Chloride in Multivitamin-Mineral Supplements using Ion Chromatography

Instrument Type: IC

This application brief describes a 15 min IC method for the determination of chloride in multivitamin-mineral supplements. The method uses a 2 mm Dionex IonPac AG20/AS20 column set with electrolytically generated potassium hydroxide (KOH) eluent. Using this method, chloride is well resolved from other anions found in the multivitamin samples. The method has a linear calibration over the concentration range from 0.2 to 500 mg/L with r2=1.000 and the method is precise (RSD ≤ 3.0%). The data show this IC-CD method can be used for the determination of chloride in multivitamins.

AN000282: Determination of Glyphosate and AMPA in Oat Flour by IC-MS

Instrument Type: ICMS

This study described the simultaneous direct determination of glyphosate and AMPA in oat flour by IC-MS. Glyphosate and AMPA can be determined sensitively and accurately using a Dionex IonPac AS19-4 μm column and ISQ EC single quadrupole mass spectrometer. The Reagent-Free ion chromatography system provides excellent reproducibility, thereby yielding greater quantification accuracy and consistently reliable results.

AN000280: Determination of Sugars in Foods using HPAE-PAD in Dual Eluent Generation Cartridge Mode

Instrument Type: IC

In this document we demonstrate that AOAC 2018.16, a first action method for sugars determination in foods, can be executed with a Thermo Scientific™ Dionex™ CarboPac™ PA20-1 mm column using KOH/KMSA eluent produced electrolytically. using Dual Eluent Generation Cartridge (Dual EGC) mode

Simultaneous screening and quantification of pesticide residues in potato using GC-Orbitrap MS

Instrument Type: GCMS

This work aimed to develop and validate an analytical method for simultaneous screening and quantification of pesticide residues in potato by using the QuEChERS extraction method in combination with the Thermo Scientific™ Exactive™ GC Orbitrap™ GC-MS system operated in full scan mode. The data acquisition and processing were carried out by using Thermo Scientific™ TraceFinder™ software. The optimized method was validated as per the SANTE/12682/2019 guidelines.

A multiresidue method for pesticide profiling using an Orbitrap Tribrid mass spectrometer

Instrument Type: LCMS

An AcquireX workflow implemented on the Orbitrap ID-X Tribrid mass spectrometer was evaluated for the analysis of 250 pesticides spiked into strawberry matrix to demonstrate the efficiency of the workflow for identifying the pesticides spiked at different levels. Detection and identification were determined by matching experimentally acquired MS and MS/MS data to validated spectral libraries. The efficiency of the AcquireX workflow was evaluated against a standard data-dependent acquisition and dynamic exclusion method that did not utilize an exclusion list.