Hello, Asha, I've never analyzed those emerging pollutants you cited, but for the emerging pollutant diclofenac (DCF) we used a UV-visible spectrometer after knowing its wavelenght:
Article Membrane adsorption with polyacrylonitrile prepared with sup...
Article Emerging Contaminants: An Overview of Recent Trends for Thei...
LC and GC are conventional means of detection of emerging contaminants in water. However, there has been ongoing progress for cheaper photo detection methods being developed. In this review article, some novel and newer detection methods were explored. Do take a look for some inspiration.