UHPLC chromatograms and respective spectra at 254 nm of gossypol from standard solution and cottonseed sample extracts.

<p>(A) Standard gossypol at 40μg/mL and its spectrum extracted at 6.384 min; (B) cottonseed sample spiked with standard gossypol (40μg/mL) and spectrum at 6.346 min; (C) cottonseed sample extract and spectrum at 6.342 min.