Advances in Analytical Methods for the Extraction and Quantification of Benzophenones in Breast Milk and Infant...

Benzophenones (BPs) and derivatives are endocrine-disrupting chemicals (EDCs) widely used in personal care products, food packaging, and flavoring ingredients. This systematic review and bibliometric analysis aimed to identify and summarize analytical methods used to determine BPs in human milk and infant formulas. Furthermore, the bibliometric evaluation explored publication trends by journal, citation count, and geographical distribution, providing insight into the global research landscape on this topic. The most employed sample preparation techniques included liquid-liquid extraction, solid-phase extraction, dispersive solid-phase extraction, low-temperature partitioning, QuEChERS, and dispersive liquid-liquid microextraction, frequently combined with enzymatic treatments with β-glucuronidase or arylsulfatase to improve recovery and sensitivity. Gas chromatography (GC) and liquid chromatography (LC) coupled with mass spectrometry (MS) were the predominant analytical platforms, with LC-MS being the most used for its ability to detect BPs without derivatization. Recent studies have shown a trend of replacing conventional organic solvents with greener, sustainable, and environmentally friendly approaches, such as miniaturized methods. This trend aligns with Green Analytical Chemistry principles and highlights the need for ongoing methodological and regulatory advancements to ensure food safety and protect public health.