UK starts voluntary phase out of nonylphenol, octylphenol and their ethoxylates

High performance liquid chromatography d

High performance liquid chromatography determination of 4-nonylphenol, 4-tert-octylphenol, and their short ethoxyl chain polyethoxylates in water samples using a microporous membrane liquid-liquid extraction sample pretreatment technique

✍ Jing-fu Liu; Xia Liang; Gui-bin Jiang; Ya-qi Cai; Qing-xiang Zhou; Guo-guang Liu 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 247 KB

## Abstract Microporous membrane liquid‐liquid extraction (MMLLE) sample pretreatment, coupled with reversed‐phase high performance liquid chromatography with fluorescence detection (HPLC‐FLD) was proposed for the determination of alkylphenols (APs), including 4‐nonylphenol (4‐NP) and 4‐__tert__‐oc