Research Article

Determination of Residual Nonsteroidal Anti-Inflammatory Drugs in Aqueous Sample Using Magnetic Nanoparticles Modified with Cetyltrimethylammonium Bromide by High Performance Liquid Chromatography

Figure 4

Chromatograms for nonsteroidal anti-inflammatory drugs (a) in a patient urine sample and (b) in a spike patient urine sample at 100 μgL−1.
127835.fig.004a
(a)
127835.fig.004b
(b)