File Name : figures1_revieweredit.tiff Caption : figure s1. electrospray ionization mass spectra of an equimolar concentration of d-serine and 2,3,3-d₃-l-serine at in 49.95:49.95:0.1 water:methanol:acetic acid at 10 mm total concentration with a) a 2.4 μm emitter, b) a 222 nm emitter and c) a 100 μm total concentration with a 222 nm emitter. File Name : figures2_final.tiff Caption : figure s2. extent of homochiral preference of protonated octamer formed by dissociation of the 17²⁺, 19²⁺, 23³⁺, 29³⁺, and 37³⁺. File Name : figures3_final.tiff Caption : figure s3. extent of homochiral preference of protonated decamer formed by dissociation of the 17²⁺, 19²⁺, 23³⁺, 29³⁺, and 37³⁺. there is no significant change in chiral preference of the decamer produced by dissociation with increasing precursor cluster size.