Shechmeister 1950  Allantoic fluid in 0.1 M Sorensen’sphosphate buffer (pH 7.1)  19.6 g L−1 (8.09 g L−1 NaH2PO4, 9.51 gL−1 Na2HPO4)  ∼1 g L−1 in allantoicfluid  -b  [15], [43]