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spectrophotometric method for the determination of paraquat in water, grain and plant materials
Analyst, 1991, 116, 391 - 393,
Priti Shivhare and V. K. Gupta

Simultaneous Determination of the Herbicides Diquat and Paraquat in Water
Authors: Rial-Otero, Raquel; Cancho-Grande, Beatriz; Perez-Lamela, Concepcion; Simal-Gándara, Jesús1; Arias-Estévez, Manuel
Source: Journal of Chromatographic Science, Volume 44, Number 9, October 2006 , pp. 539-542(4)

Selective Kinetic Determination of Paraquat Using Long-Wavelength Fluorescence Detection
J. Agric. Food Chem., 47 (9), 3733 -3737, 1999. 10.1021
Blanca Sendra, Sagrario Panadero, and Agustina Gómez-Hens*

Simultaneous determination of paraquat and diquat in serum using capillary electrophoresis
Biomedical Chromatography
Volume 6, Issue 2 , Pages 91 - 94
Masafumi Tomita , Toshiko Okuyama , Yayoi Nigo