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Paraquat

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SERS spectrum of Paraquat

Concentration:
10-6 M

The graph shows SERS spectrum of 50ppm Paraquat also known as Methyl Viologen. This salt is one of the most widely used herbicides.

Laser wavelength: 633 nm
Laser power: 0.15mW
Integration time: 0.1 seconds
Raman Spectrometer: Raman Portable Device
Lens magnification: 50x
Sampling method: immersion
Substrate used: Silver