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Helida Oyieke

Publications (1)

Pesticide Residue Levels in Soil, Water, Kales and Tomatoes in Ewaso Narok Wetland, Laikipia, County, Kenya

Peter Ngolo, Mildred Nawiri, Alex Machocho & Helida Oyieke · Journal of Scientific Research and Reports · 2019

Soil, water, kales and tomatoes from Ewaso Narok wetland were collected during wet and dry seasons and analyzed for 15 pesticide residues. Multi-residues method (QuEChERS EN) was used for sample preparation and Liquid chromatography-tandem mass spectrometry (LC-MS/MS) used for an...

Open access Research Article 10.9734/jsrr/2019/v24i530165