W. R. Erwin

Insecticide Determination, Color Reaction of 2,6-Dibromo-N-chloro-p-quinoneimine with Thiophosphate Insecticides on Paper Chromatograms

Julius J. Menn, W. R. Erwin, H. T. Gordon · Journal of Agricultural and Food Chemistry · 1957 · 85 citations

Persistent Organic Pollutant, Insecticide Determination, Color Reaction +14

Pesticide Residue Analyses, Preassay Purification of Tissue Extracts by Wax Column

W. R. Erwin, Dora Schiller, W. M. Hoskins · Journal of Agricultural and Food Chemistry · 1955 · 17 citations

Residue (Chemistry), Engineering, Pesticide-residue Analysis +22

Pesticide Residue Analysis, A Polyethylene-Alumina Column for Purification of Tissue Extracts before Analysis

W. M. Hoskins, W. R. Erwin, R. Miskus et al. · Journal of Agricultural and Food Chemistry · 1958 · 14 citations

Residue (Chemistry), Engineering, Pesticide-residue Analysis +18