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1.
Chlorpyrifos applied to California citrus: residue levels on foliage and on and in fruit.
Iwata, Y; O'Neal, J R; Barkley, J H; Dinoff, T M; Düsch, M E.
J Agric Food Chem ; 31(3): 603-10, 1983.
Article in English | MEDLINE | ID: mdl-6193155

Subject(s)
Chlorpyrifos/analysis , Citrus/analysis , Pesticide Residues/analysis , California
2.
Phenthoate applied to California citrus trees: residue levels on foliage and soil, in air, and on and in fruit.
Iwata, Y; Carman, G E; O'Neal, J R; Barkley, J H; Düsch, M E; Gunther, F A.
J Agric Food Chem ; 29(1): 135-45, 1981.
Article in English | MEDLINE | ID: mdl-7204748

Subject(s)
Citrus/analysis , Insecticides/analysis , Organothiophosphorus Compounds/analysis , Pesticide Residues/analysis , Air Pollutants/analysis , Plants/analysis , Soil Pollutants/analysis
3.
Aldicarb residues in oranges, citrus by-products, orange leaves, and soil after an aldicarb soil-application in an orange grove.
Iwata, Y; Westlake, W E; Barkley, J H; Carman, G E; Gunther, F A.
J Agric Food Chem ; 25(4): 933-7, 1977.
Article in English | MEDLINE | ID: mdl-881517

Subject(s)
Aldicarb/analysis , Citrus/analysis , Insecticides/analysis , Pesticide Residues/analysis , Methods , Plants/analysis , Soil Pollutants/analysis
4.
Behavior of phenthoate (Cidial) deposits and residues on and in grapefruits, lemons and lemon leaves, oragnes and orange leaves, and in the soil beneath orange trees.
Iwata, Y; Westlake, W E; Barkley, J H; Carman, G E; Gunther, F A.
J Agric Food Chem ; 25(2): 362-8, 1977.
Article in English | MEDLINE | ID: mdl-838975

Subject(s)
Citrus/analysis , Insecticides/analysis , Organothiophosphorus Compounds , Pesticide Residues/analysis , Soil Pollutants/analysis
5.
Worker environment research. II. Sampling and processing techniques for determining dislodgable pesticide residues on leaf surfaces.
Gunther, F A; Barkley, J H; Westlake, W E.
Bull Environ Contam Toxicol ; 12(6): 641-4, 1974 Dec.
Article in English | MEDLINE | ID: mdl-4376035

Subject(s)
Cyclohexanes/analogs & derivatives , Pesticide Residues/analysis , Plants/analysis , Azinphosmethyl/analysis , Cyclohexanes/analysis , Freezing , Insecticides/analysis , Methods , Parathion/analysis , Phenyl Ethers/analysis , Refrigeration , Sulfur Acids/analysis , Time Factors
6.
Establishing dislodgeable pesticide residues on leaf surfaces.
Gunther, F A; Westlake, W E; Barkley, J H; Winterlin, W; Langbehn, L.
Bull Environ Contam Toxicol ; 9(4): 243-9, 1973 Apr.
Article in English | MEDLINE | ID: mdl-4780728

Subject(s)
Pesticide Residues/analysis , Plants/analysis , Citrus , Dioxins/analysis , Fruit , Insecticides/analysis , Methods , Parathion/analysis , Phosphamidon/analysis , Time Factors
7.
A simple mud sampling device.
Barkley, J H.
Bull Environ Contam Toxicol ; 6(4): 313-5, 1971.
Article in English | MEDLINE | ID: mdl-5153772

Subject(s)
Equipment and Supplies , Soil/analysis , Methods , Water Pollution/analysis
8.
Simple liquid-liquid partitioning apparatus.
Gunther, F A; Barkley, J H.
Bull Environ Contam Toxicol ; 2(1): 53-6, 1967 Jan.
Article in English | MEDLINE | ID: mdl-24189613
9.
Conversion of a Dohrmann Microcoulometric Gas Chromatograph to a convenient and rapid "total chloride" unit.
Gunther, F A; Barkley, J H.
Bull Environ Contam Toxicol ; 1(2): 39-45, 1966 Mar.
Article in English | MEDLINE | ID: mdl-24192851
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