S. Benhayoun et al., METHOD FOR THE DIRECT SPECIFIC MEASUREMENT OF VITAMIN-B(12) BOUND TO TRANSCOBALAMIN-II IN PLASMA, Acta haematologica, 89(4), 1993, pp. 195-199
The concentration of plasma vitamin B-12 bound to transcobalamin II wa
s measured by two methods: QUSO(R) and Heparin Sepharose(R) (HS). The
new HS procedure provided a specific, direct measurement of vitamin B-
12 bound to both R binder and transcobalamin II in plasma.