Sensitive and inexpensive dual-wavelength reflection spectrophotometry using interference filters
Duckrow RB, LaManna JC, Rosenthal M. Sensitive and inexpensive dual-wavelength reflection spectrophotometry using interference filters. Analytical Biochemistry 1982, 125: 13-23. PMID: 6293337, DOI: 10.1016/0003-2697(82)90377-3.Peer-Reviewed Original Research