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1

Simplified liquid chromatographic determination of glyphosate and metabolite residues in environmental water using post-column fluorogenic labelling

Yuk Y. Wigfield, Monique Lanouette

Journal:

Analytica Chimica Acta

Year:

1990

Language:

english

File:

PDF, 322 KB

english, 1990

2

Effects of stereochemistry on the stability of alpha-nitrosamino carbanions

Robert R. Fraser, Yuk Y. Wigfield

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 245 KB

english, 1971

3

N-Nitrosodimethylamine content of aqueous dimet hylamine and phenoxy herbicide/dimethylamine formulations during storage

Yuk Y. Wigfield, Charles C. McLenaghan

Journal:

Pest Management Science

Year:

1987

Language:

english

File:

PDF, 262 KB

english, 1987

4

Gas-liquid chromatographic determination of NDMA in dimethylamine and in laboratory prepared herbicidal dimethylamine formulations

Yuk Y. Wigfield, Charles C. McLenaghan

Journal:

Pest Management Science

Year:

1987

Language:

english

File:

PDF, 531 KB

english, 1987

5

A rapid and sensitive method for gas-liquid chromatographic determination of N-nitrosodimethylamine in formulations of chlormequat chloride

Yuk Y. Wigfield, Mario D. Lacroix

Journal:

Pest Management Science

Year:

1987

Language:

english

File:

PDF, 399 KB

english, 1987

6

A modified clean-up for the determination of glyphosate and its metabolite residues in lentils using high pressure liquid chromatography and post-column fluorogenic labelling

Yuk Y. Wigfield, Monique Lanouette

Journal:

Pest Management Science

Year:

1991

Language:

english

File:

PDF, 432 KB

english, 1991

7

Analysis for atrazine in fortified cornmeal and corns using a commercially available enzyme immunoassay microtiter plate

Yuk Y. Wigfield, Ralph Grant

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1993

Language:

english

File:

PDF, 383 KB

english, 1993

8

Determination ofN-nitrosodimethylamine in thiram formulations using steam distillation followed by solid phase extraction/enrichment

Yuk Y. Wigfield, Mario D. Lacroix

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1992

Language:

english

File:

PDF, 331 KB

english, 1992

9

Evaluation of an immunoassay kit for the detection of certain organochlorine (cyclodiene) pesticide residues in apple, tomato, and lettuce

Yuk Y. Wigfield, Ralph Grant

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1992

Language:

english

File:

PDF, 287 KB

english, 1992

10

Liquid chromatographic and thermal energy analyzer detection of N-nitrosodiphenylamine in formulations of diphenylamine

Yuk Y. Wigfield, Charles C. McLenaghan

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1990

Language:

english

File:

PDF, 219 KB

english, 1990

11

Levels of N-nitrosodimethylamine in nitrogen fertilizers/herbicide mixtures containing 2,4-D present as dimethylamine salt

Yuk Y. Wigfield, Charles C. McLenaghan

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1990

Language:

english

File:

PDF, 265 KB

english, 1990

12

Nitrosamines in formulations of deet and EPTC

Yuk Y. Wigfield, Charles C. McLenaghan

Journal:

Bulletin of Environmental Contamination and Toxicology

Year:

1990

Language:

english

File:

PDF, 258 KB

english, 1990

13

Simultaneous determination of residues of paraquat and diquat in potatoes using high-performance capillary electrophoresis with a ultraviolet detection

Wigfield, Yuk Y., McCormack, Kathleen A., Grant, Ralph.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1993

Language:

english

File:

PDF, 516 KB

english, 1993

14

Conformational preference of an .alpha.-sulfinyl carbanion

Fraser, Robert R., Schuber, Francis J., Wigfield, Yuk Y.

Journal:

Journal of the American Chemical Society

Year:

1972

Language:

english

File:

PDF, 634 KB

english, 1972

15

Supercritical fluid extraction of the fortified residues of fluazifop-P-butyl (Fusilade II) and its major metabolite, fluazifop-P, in onions

Wigfield, Yuk Y., Lanouette, Monique.

Journal:

Journal of Agricultural and Food Chemistry

Year:

1993

Language:

english

File:

PDF, 595 KB

english, 1993

16

Assignment of configuration to sulphoxides by use of the ?shift reagent?

Fraser, Robert R., Wigfield, Yuk Yung

Journal:

Journal of the Chemical Society D Chemical Communications

Year:

1970

Language:

english

File:

PDF, 305 KB

english, 1970

17

Substitution α to the Nitrogen in Dibenzylamine via Carbanion Intermediates

Fraser, Robert R., Boussard, Guy, Postescu, I. Dan, Whiting, , Josephine J., Wigfield, Yuk Y.

Journal:

Canadian Journal of Chemistry

Year:

1973

Language:

english

File:

PDF, 423 KB

english, 1973

18

Dihedral Angular Dependence of H—N—C—H Coupling Constants. Protonated Amines in Trifluoroacetic Acid

Fraser, Robert R., Renaud, Roger N., Saunders, John K., Wigfield, Yuk Y.

Journal:

Canadian Journal of Chemistry

Year:

1973

Language:

english

File:

PDF, 246 KB

english, 1973

19

Nitrations of acetanilides by reagents of NO 2 X type

Lynch, Brian M., Chen, Catherine M., Wigfield, Yuk-Yung

Journal:

Canadian Journal of Chemistry

Year:

1968

Language:

english

File:

PDF, 673 KB

english, 1968

20

Evidence for albumin – Cu(II) – amino acid ternary complex

Sarkar, Bibudhendra, Wigfield, Yuk

Journal:

Canadian Journal of Biochemistry

Year:

1968

Language:

english

File:

PDF, 700 KB

english, 1968

21

Visible, optical rotatory dispersion, and paramagnetic resonance spectra of the L -histidine–Cu(II)– L -threonine complex

Sarkar, Bibudhendra, Bersohn, Malcolm, Wigfield, Yuk, Chiang, Teh-Ching

Journal:

Canadian Journal of Biochemistry

Year:

1968

Language:

english

File:

PDF, 470 KB

english, 1968

22

ChemInform Abstract: SUBSTITUTION IN ALPHA-STELLUNG ZUM STICKSTOFF IN DIBENZYLAMIN UEBER CARBANIONEN-ZWISCHENPRODUKTE

FRASER, ROBERT R., BOUSSARD, GUY, POSTESCU, I. DAN, WHITING, JOSEPHINE J., WIGFIELD, YUK Y.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 258 KB

1973

23

ChemInform Abstract: BEVORZUGTE KONFORMATION EINES ALPHA-SULFINYL-CARBANIONS

FRASER, ROBERT R., SCHUBER, FRANCIS J., WIGFIELD, YUK Y.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 111 KB

1973

24

ChemInform Abstract: BEVORZUGTE KONFORMATION EINES ALPHA-SULFINYL-CARBANIONS

FRASER, ROBERT R., SCHUBER, FRANCIS J., WIGFIELD, YUK Y.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 111 KB

1973

25

Residue Analysis of Glyphosate and Its Principal Metabolite in Certain Cereals, Oilseeds,and Pulses by Liquid Chromatography and Postcolumn Fluorescence Detection

Wigfield, Yuk Y, Lanouette, Monique

Journal:

Journal of AOAC International

Year:

1991

Language:

english

File:

PDF, 659 KB

english, 1991

26

ChemInform Abstract: DIHEDRAL ANGULAR DEPENDENCE OF H-N-C-H COUPLING CONSTANTS, PROTONATED AMINES IN TRIFLUOROACETIC ACID

FRASER, ROBERT R., RENAUD, ROGER N., SAUNDERS, JOHN K., WIGFIELD, YUK Y.

Journal:

Chemischer Informationsdienst

Year:

1973

File:

PDF, 96 KB

1973

27

Rapid and Simple Method for Isolation and Gas Chromatographic Determination of N-Nitrosodimethylamine in Dimethyldithiocarbamate Formulations

Wigfield, Yuk Y, Mclenaghan, Charles C

Journal:

Journal of AOAC International

Year:

1989

File:

PDF, 571 KB

1989

28

Gas Chromatographic Determination of N-Nitrosodialkanolamines in Herbicide Di- or Trialkanolamine Formulations

Wigfield, Yuk Y, Lacfloix, Mario D, Lanouette, Monique, Gurprasad, Narine P

Journal:

Journal of AOAC International

Year:

1988

File:

PDF, 733 KB

1988

29

Liquid Chromatographic and Gas Chromatographic Determination of N-Nitrosodiethanolamine in 2,4-D Diethanolamine Pesticide Formulations

Wigfield, Yuk Y, Lanouette, Monique

Journal:

Journal of AOAC International

Year:

1985

File:

PDF, 882 KB

1985

30

Determination of /V-Nitrosodiethanolamine in Dinoseb Formulations by Mass Spectrometry and Thermal Energy Analyzer Detection

Wigfield, Yuk Y, Gurprasad, Narine P, Lanouette, Monique, Ripley, Sharon

Journal:

Journal of AOAC International

Year:

1987

File:

PDF, 603 KB

1987

31

Liquid Chromatographic Determination of Phenolic Impurities in Technical MCPA Using Electrochemical Detection (Coulometric Mode)

Wigfield, Yuk Y, Lanouette, Monique

Journal:

Journal of AOAC International

Year:

1988

File:

PDF, 377 KB

1988

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