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1 The Murray Foundation, Inc., Cincinnati 29, Ohio
2 Research Laboratories, The Wm. S. Merrell Co., Cincinnati, Ohio
Inorganic nitrite is formed from nitrate esters of polyhydric alcohols by two systems occurring in normal rabbit tissues. The first, occurring principally in the liver, is heat-labile. The second, found in liver, muscle, and blood, is activated or released from combination by heat. The system as present in fresh liver homogenate shows maximal activity in the neighborhood of pH 8.4; after acidification to pH 2, it regains most of its activity on re-neutralization.
Submitted on April 16, 1948