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To determine if any absorption did take place where stored, and fod each one when and how eliminated we took 3 guinea pigs / 100 milligrams of luminous paint containing 2.9 mg. of radium per 100 grams of paint, each day for 20 days. The urine and feces were collected each day. After the animals had had 2 grams of the paint fed them, they were kept for an additional ten days during which period the urine and feces were also collected but kept repante from that of the lst 20 days. The animals were autopsied and organs dissected out. Because the organs were small and the amount of radioactive material supposed to be present was minute we put the individual organs of the three animals together. Our findings were as follows: Organs Dry wt. microgram radium element per gram of material Heart 3.4189 5 x 10 -4 Lungs 3.4618 4.6 X 10 -4 Brains 3.3708 2 X 10 4 Spleen 2.9406 2.5 X 10 Liver 12.1291 2.5 X 10 Kidney 4.035 1.6 x 10 Musch after burning 10.5 1.6 x 10-3 Bones after buning 12.3 .02 micrograms The feces for the 1st 10 days contained 1.55 micrograms per gram burnt material. 2nd ten days - 1.75 micrograms per gram. burnt material. 10 days after feeding: 0.23 micrograms per gram. The urine samples remained more or less constant for the entire period and contained 2.5 x 10-2 micrograms per gram evaporated material. An analysis of the original paint showed that 2 grams of the paint contained .058 mg of radioactive material. Our test showed that 97.85% of the material ingested was eliminated within 10 days after the feeding stopped. The fact that radioactive material was actually absorbed is proven by the fact that the urine was radio- active as well as the various organs. The greater part of the radium retained in the body was found to be deposited in the bone. The amount percent in the other organs depended on the blood supply. The jaws of 5 pigs were painted regularly each day for a period of six months during which time each pig had 3 grams of paint painted on the guns. Two months after the last application the pigs were killed and the entire body burnt to an ash and examined for radium. As a control the bodies of two intreated animals were also ashed. Animal Side Div. lst read. 2nd read. Average Blank 60 - 50 197 sec 197 sec 197sec A # 194 188 191 sec B # 195 200 197.5 Blank # 199 195 197. C Il 194 195 194.5 D Il 194 196 195. E II 198 198 198 Blank Il 198 197 197.5 A Repeated II 191 192 191.5

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Page context
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    "seq": 2,
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    "ocrText": "To determine if any absorption did take place where stored,\nand\nfod\neach\none\nwhen and how eliminated we took 3 guinea pigs / 100 milligrams of luminous\npaint containing 2.9 mg. of radium per 100 grams of paint, each day for 20 days.\nThe urine and feces were collected each day. After the animals had had 2\ngrams of the paint fed them, they were kept for an additional ten days during\nwhich period the urine and feces were also collected but kept repante from\nthat of the lst 20 days. The animals were autopsied and\norgans dissected\nout. Because the organs were small and the amount of radioactive material\nsupposed to be present was minute we put the individual organs of the three\nanimals together.\nOur findings were as follows:\nOrgans\nDry wt.\nmicrogram radium element per gram of material\nHeart\n3.4189\n5 x 10\n-4\nLungs\n3.4618\n4.6 X 10\n-4\nBrains\n3.3708\n2 X 10\n4\nSpleen\n2.9406\n2.5 X 10\nLiver\n12.1291\n2.5 X 10\nKidney\n4.035\n1.6 x 10\nMusch after\nburning\n10.5\n1.6 x 10-3\nBones after\nbuning\n12.3\n.02 micrograms\nThe feces for the 1st 10 days contained 1.55 micrograms per gram\nburnt material. 2nd ten days - 1.75 micrograms per gram. burnt material.\n10 days after feeding: 0.23 micrograms per gram.\nThe urine samples remained more or less constant for the entire\nperiod and contained 2.5 x 10-2 micrograms per gram evaporated material.\nAn analysis of the original paint showed that 2 grams of the paint\ncontained .058 mg of radioactive material.\nOur test showed that 97.85% of the material ingested was eliminated\nwithin 10 days after the feeding stopped. The fact that radioactive\nmaterial was actually absorbed is proven by the fact that the urine was radio-\nactive as well as the various organs. The greater part of the radium retained\nin the body was found to be deposited in the bone. The amount percent in the\nother organs depended on the blood supply.\nThe jaws of 5 pigs were painted regularly each day for a period of\nsix months during which time each pig had 3 grams of paint painted on the\nguns. Two months after the last application the pigs were killed and the\nentire body burnt to an ash and examined for radium. As a control the bodies\nof two intreated animals were also ashed.\nAnimal\nSide Div.\nlst read.\n2nd read.\nAverage\nBlank\n60 - 50\n197 sec\n197 sec\n197sec\nA\n#\n194\n188\n191 sec\nB\n#\n195\n200\n197.5\nBlank\n#\n199\n195\n197.\nC\nIl\n194\n195\n194.5\nD\nIl\n194\n196\n195.\nE\nII\n198\n198\n198\nBlank\nIl\n198\n197\n197.5\nA Repeated\nII\n191\n192\n191.5"
}