You may also wish to search for items by Johnson, B. and Johnson.
Only one matching reference was found.
McLaughlin, R.A.; Johnson, B.S., Optimizing recoveries of two chlorotriazine herbicide metabolites and 11 pesticides from aqueous samples using solid-phase extraction and gas chromatography-mass spectrometry, J. Chromatogr. A, 1997, 790, 1-2, 161-167, https://doi.org/10.1016/S0021-9673(97)00717-6 . [all data]