No abstract

The solubility of CO 2 in isooctane at 270.8 K, 275.0 K, and 282.5 K and at pressures from (1.46 to 3.64) MPa and the solubility of N 2 in isooctane at 269.9 K, 274.5 K, and 282.3 K and at pressures from (2.70 to 9.45) MPa were measured. The solubility of CO 2 in isooctane is one order of magnitude greater than that in water at the same conditions. Temperature has no significant effect on the solubility of N 2 in isooctane. The equilibrium compositions of CO 2 and N 2 binary mixtures in isooctane at 273.8 K and at a CO 2 mole fraction range of (0.079 to 0.675) in the gas phase were also determined. The selectivity of CO 2 over N 2 in isooctane ranges from (7.2 to 14.6) at 273.8 K.

Kell antigens on chimpanzee (Pan troglodytes) red cells were determined using specific human alloimmune and murine monoclonal antibodies. After avoidance of interspecies reactions, chimpanzee red cells were found to react with most Kell system antibodies. The chimpanzees had phenotypes similar to those of humans. The main difference was that all of 27 chimpanzee red cell samples tested were of the K:6, -7, phenotype, while in humans most are K:-6, 7. The most common chimpanzee Kell blood group phenotype was K:-1,2,-3,4,5,6,-7,11,12,13,14, 15,18,19,22. Murine monoclonal anti-K2 and -K14 immunoprecipitated a 97-kD protein from chimpanzee red cells and a 93-kD protein from human red cells. Enzymatic deglycosylation yielded proteins of about 79 kD for humans and 77 kD for chimpanzees. Both human and chimpanzee Kell proteins reacted equally well on Western blots with polyclonal rabbit antibody to human Kell protein, which indicated close homology.

Jaubert and Vita 1 recently made comments on our paper (Zhang et al. 2 ). The main suggestion is that we should include some previous works on the solubility of CO 2 or N 2 in isooctane. There are many literatures reporting CO 2 + isooctane and N 2 + isooctane equilibrium data as summarized in Table 1.