Transfusion of newly stored blood

It is shown that freshly stored stabilized blood differs in its effect on a recipient only on account of addition of stabilizors to it. The replacement effect due to transfusion of freshly preserved citrated blood is analogous to that noted in direct blood transfusion, however the response of the cardiovascular system inadequate for the transfused blood volume would restrict the rate and volume of transfusion. Freshly heparinized blood differs from donor blood by impaired coagulation factors, but it is identical in hemodynamic effect. Freshly preserved sorbent blood is mostly close in its efficacy to direct transfusions, since its content differs from native donor blood only in calcium content.     

Identification of N-nitrosodimethylamine in ambient air by capillary gas-liquid chromatography mass spectrometry computer

Organic vapors in ambient air, at or near an industrial site in Baltimore, Maryland, were collected by adsorption on a sorbent of porous polymer (Tenax GC, 35/60). The pollutants were recovered by thermal desorption and analyzed by gas-liquid chromatography mass spectrometry computer using capillary glass SCOT columns. N-Nitrosodimethylamine was identified from its mass spectrum as a constituent of the atmosphere in the areas sampled. The identification of this compound was confirmed by comparison of its mass spectrum with that of authentic N-nitrosodimethylamine; identical retention times of unknown and authentic compound on three different capillary columns were observed.