Separation and Determination of Paraquat and Diquat in Human Plasma and Urine by Magnetic Dispersive Solid Phase Extraction Coupled with High-Performance Liquid Chromatography

Figure 15

(a) The HPLC chromatogram of PQ and DQ in patient’s plasma; PQ and DQ spiked into human plasma samples; and blank human plasma sample. (b) The HPLC chromatogram of PQ and DQ in patient’s urine; PQ and DQ spiked into human urine samples; and blank human urine sample.

(a)

(b)