Introduction Food preservatives such as benzoates and sorbates are widely used to inhibit microbial growth in processed foods. Reliable detection of these preservatives is essential for regulatory compliance and quality control. Solid-phase extraction (SPE) provides a robust cleanup and preconcentration step before chromatographic analysis. This blog outlines a streamlined SPE workflow for detecting benzoic acid […]

Extraction of Veterinary Drug Residues from Milk Using HLB SPE 1. Regulatory Importance of Veterinary Drug Monitoring Veterinary drugs are widely used in dairy production to prevent and treat diseases, but their residues in milk pose potential health risks to consumers, including allergic reactions, antimicrobial resistance, and endocrine disruption. Regulatory agencies such as the FDA,

Flavonoid Compounds in Green Tea (Catechins) Green tea is rich in flavonoids, particularly catechins such as epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate (ECG), and epicatechin (EC). These polyphenolic compounds contribute to the antioxidant, anti-inflammatory, and cardioprotective properties of green tea. Their isolation and purification are critical for nutritional research, quality control, and functional food