The method used a Thermo Scientific™ Dionex™ IonPac™ AS23-4μm column, a Thermo Scientific™ Dionex™ AERS™ 500 Carbonate anion electrolytically regenerated suppressor, and a Thermo Scientific™ Dionex™ CRD 300 Carbonate Removal Device in vacuum mode. This work demonstrates a similar method on a Thermo Scientific™ Dionex™ Inuvion™ ion chromatography system, a new integrated, single-channel compact IC system.
The European Food Safety Authority (EFSA) reported chlorate as a risk to human health. In June 2020, the European Commission set chlorate limits for various foods, including the limit for algae (0.05 mg/kg). This work describes a straightforward method to determine chlorate in seaweed-derived agar products. A sample preparation circumvents unwanted gelation, thus avoiding clogging capillaries and columns. Our approach is suitable for analyzing chlorate where the final agar content does not exceed 0.5–1.0%
Chlorate and other oxychlorine species have been associated with inhibition of iodine uptake in humans and the formation of methemoglobin. Infants and young children are at high‐risk due to their greater dependency on milk products and higher consumption/body weight ratio. This method uses a Dionex™ IonPac™ AS20 column set, on a compact IC system (Thermo Scientific™ Dionex™ Integrion™ HPIC system) coupled with a Thermo Scientific™ ISQ EC™ single quadrupole mass spectrometer to quantify chlorate and perchlorate in milk with a simple sample preparation.
Food can be contaminated by chlorate and perchlorate during different stages of production. Recent reports by the European Food Safety Authority (EFSA), found that current levels of chlorate in drinking water and in foods were too high and could negatively impact iodine uptake especially among infants and children. This method uses a Dionex™ IonPac™ AS20 column set, on a compact IC system (Thermo Scientific™ Dionex™ Integrion™ HPIC system) coupled with a Thermo Scientific™ ISQ EC™ single quadrupole mass spectrometer to determine chlorate and perchlorate in powdered infant formula.
This study demonstrates the ability of the Thermo Scientific™ Dionex™ IonPac™ AS30 column to separate ethylenediamine (EDA) carbamate and fluoride as well as carbonate and sulfate in order to determine trace concentrations of oxyhalides and bromide in drinking water containing the EDA preservative.
