4-Ethylphenol 4-n-heptylphenol 4-Nonylphenol 4-sec-Butylphenol Bisphenol A 2-t-Butylphenol 3-t-Butylphenol 4-n-Hexylphenol 4-n-Octylphenol 4-n-Pentylphenol 4-t-Butylphenol 4-t-octylphenol Pyrene-d10
water quality water Environment endocrine disruptor Alkylphenol SPE InertCap 5MS/Sil