Two senior chemistry majors will present this week’s Chemistry Seminar.

Ashley Patraw will discuss “Pigment Identification by Spectroscopic Means: Evidence Consistent with the Attribution of the Painting ‘Young Woman Seated at a Virginal’ to Vermeer,” and Matthew Humbert will discuss “Molecular Proteomics Imaging of Tumor Interfaces by Mass Spectrometry.”

The Chemistry Seminar will be held at 2:55 p.m. Friday, April 23, in Room 251, Owens Science Hall. Everyone is invited to attend.