Fatty acids are compounds where a hydrocarbon chain is attached to a carboxyl group. They can be classified into saturated fatty acids (having no double bonds between carbons) and unsaturated fatty acids (having double bonds). In this application, eight saturated […]
The Japanese “Second Edition: Analytical Methods for Food Additives in Foods” (Notification Eika No. 15, March 30, 2000 [Revised by Notifications Yakuseishokihatsu No. 0624-1 and Yakuseishokanhatsu No. 0624-1*, June 24, 2021], Ministry of Health, Labour and Welfare (MHLW)) includes a […]
Anthocyanidins are polyphenols found in grape skins and blueberries. They have antioxidant and anti-inflammatory effects, which are expected to improve vision and nerve health. In this application, we performed separation of six major anthocyanidins using Silica C18 M 4D, a […]
Coenzyme Q10, also known as ubiquinone Q10 (or ubiquinone), is a fat-soluble substance found in foods such as meat and seafood. It is expected to have antioxidant and anti-aging effects and is also known as a vitamin-like substance. In this […]
Coenzyme Q10, also known as ubiquinone Q10 (or ubiquinone), is a fat-soluble substance found in foods such as meat and seafood. It is expected to have antioxidant and anti-aging effects and is also known as a vitamin-like substance. In this […]
RSpak DE-413, a polymer-based reversed phase chromatography column, can be used with aqueous eluents with no organic solvent. In this application, simultaneous analysis of C1 compounds including formaldehyde, methanol, and formic acid was performed using an aqueous solution of phosphoric […]
Three chelating agents were analyzed using Asahipak ODP-50 4D, a polymer-based reversed phase chromatography column. The chelating agents are pretreated to convert into chelating compounds (iron chelates) before analysis. Sample pretreatment Dissolve chelating agents in a mixture of 10 mM […]
ε-caprolactam, a residual monomer in nylon 6, was analyzed using Asahipak ODP-50 4D, a reversed-phase chromatography column. Analysis of ε-caprolactam can be performed without an influence from extract contaminants. Sample pretreatment Add 10 mL of pure water to 0.5 g […]
Asahipak ODP-50 4D, a reversed phase chromatography column, was used for simultaneous analysis of erythromycin, a macrolide antibiotics, and its derivative azithromycin. Since macrolide antibiotics are basic substances, their dissociation is suppressed under alkaline conditions, and this makes them easily […]