Magnetic CPL (MCPL) measurements on samples such as PMMA-film, KBr pellets and powder state are reported in literature by Imai and Fujiki et al.^{1, 2)}.
The MCPL accessory measures CPL characteristics by applying a magnetic field parallel to the light axis inside the sample compartment.
The MCPL accessory fits both the CPL-300 and J-1500 sample compartments and provides complementary MCD and MCPL information on the same sample.

1.6 tesla compact permanent magnet and its overview

Magnetic CPL/fluorescence spectra of Phthalocyanine Zinc
(green: light source side N, blue: light source side S)

1) D. Kaji, H. Okada, N. Hara, Y. Kondo, S. Suzuki, M. Miyasaka, M. Fujiki, Y. Imai: Chem. Lett., 49 (6), 674 (2020)
2) H. Yoshikawa, G. Nakajima, Y. Mimura, T. Kimoto, Y. Kondo, S. Suzuki, M. Fujiki, Y. Imai: Dalton Trans., 49, 9588 (2020)