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Pigs B & Ex showed no radio-active material. Pigs C & D give a
slight indication of its presence: might
be an error in observation.
Pig A shows a definite amount tho very small.
We injected equal amounts of radium chloride subcutaneously into a
number of pigs, gilled them at stated periods, burning them to an ash and
making a radium determination with the following result
Animal Killed
15 minutes after injection
4.21
microgram
Il
24
II
ff
II
3.75
Il
II
48
II
Il
Il
3.15
II
II
7
days
If
II
1.32
Il
il
14
II
11
#
1.29
18
II
II
"
38
n
.75
If
#
3
months
II
II
.34
Il
These findings confirmed those of Viol (Radium July 1923) who found
that 54 to 60% of the radium was eliminated in 10 days and after that at' a
rate of around 1% per month. Wada (
) findings were the
same.
Also, Gustave M. Meyer, Jour. Brol. Chem. 2.461: 1907, H. A. Seil
N.M. Medical J. 101, 896, May 1,1915. My examination of the excreta of a
patient showed that she was excreting radium.
In other words we find that no matter how radioactive material gets
into the body, part of it is rapidly eliminated but that after approximately
10 days the radio-active material becomes temporarily fixed in the body, and
the rate of elimination is very slow and while in the usual person it may be
completely eliminated in time. The main place of deposit is in the bone
where its emanating can react on the bone marrow which is the chief blood
forming organ in the body.
The question naturally arose if radio-active deposits are in the body
do they throw out a large amoint of emanation. It is a well known fact that
radium can be completely de-emanated by passing a current of air through a
solution of its salts or by heating the compound. Even dry radium chloride
and bromide which are soluble salts give up quite large proportions of their
included radium emanation. On the other hand radium subphate, even when very
finely divided, holds the emanation very strongly, so that less than 5% of
the emanation escapes from the salt. (Cameron & Viol, Radium Hanuary 1915).
For this reason a good deal depends on what form the radium is deposited in
as to the effect that it has on the human system. The blood bathes every part
of the body carrying food to the tissues and carrying away the waste products.
In this way we find that the blood of a person whose body contains radio-active
deposits will be radio-active probably containing emanation. These
emanations
are gases and according to osmotic pressure will escape largely through the
lungs. This furnishes a good confirmation method as to the presence of radio-
active deposits in the body. But is only a qualitative test. This escape of
emanation in the exhaled air was mentioned by Cameron & Viol in "Radium" May
1915 ( Su Radium July 1923).
I wanted to see if we can detect radio-active deposits by means of the
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"ocrText": "-3-\nPigs B & Ex showed no radio-active material. Pigs C & D give a\nslight indication of its presence: might\nbe an error in observation.\nPig A shows a definite amount tho very small.\nWe injected equal amounts of radium chloride subcutaneously into a\nnumber of pigs, gilled them at stated periods, burning them to an ash and\nmaking a radium determination with the following result\nAnimal Killed\n15 minutes after injection\n4.21\nmicrogram\nIl\n24\nII\nff\nII\n3.75\nIl\nII\n48\nII\nIl\nIl\n3.15\nII\nII\n7\ndays\nIf\nII\n1.32\nIl\nil\n14\nII\n11\n#\n1.29\n18\nII\nII\n\"\n38\nn\n.75\nIf\n#\n3\nmonths\nII\nII\n.34\nIl\nThese findings confirmed those of Viol (Radium July 1923) who found\nthat 54 to 60% of the radium was eliminated in 10 days and after that at' a\nrate of around 1% per month. Wada (\n) findings were the\nsame.\nAlso, Gustave M. Meyer, Jour. Brol. Chem. 2.461: 1907, H. A. Seil\nN.M. Medical J. 101, 896, May 1,1915. My examination of the excreta of a\npatient showed that she was excreting radium.\nIn other words we find that no matter how radioactive material gets\ninto the body, part of it is rapidly eliminated but that after approximately\n10 days the radio-active material becomes temporarily fixed in the body, and\nthe rate of elimination is very slow and while in the usual person it may be\ncompletely eliminated in time. The main place of deposit is in the bone\nwhere its emanating can react on the bone marrow which is the chief blood\nforming organ in the body.\nThe question naturally arose if radio-active deposits are in the body\ndo they throw out a large amoint of emanation. It is a well known fact that\nradium can be completely de-emanated by passing a current of air through a\nsolution of its salts or by heating the compound. Even dry radium chloride\nand bromide which are soluble salts give up quite large proportions of their\nincluded radium emanation. On the other hand radium subphate, even when very\nfinely divided, holds the emanation very strongly, so that less than 5% of\nthe emanation escapes from the salt. (Cameron & Viol, Radium Hanuary 1915).\nFor this reason a good deal depends on what form the radium is deposited in\nas to the effect that it has on the human system. The blood bathes every part\nof the body carrying food to the tissues and carrying away the waste products.\nIn this way we find that the blood of a person whose body contains radio-active\ndeposits will be radio-active probably containing emanation. These\nemanations\nare gases and according to osmotic pressure will escape largely through the\nlungs. This furnishes a good confirmation method as to the presence of radio-\nactive deposits in the body. But is only a qualitative test. This escape of\nemanation in the exhaled air was mentioned by Cameron & Viol in \"Radium\" May\n1915 ( Su Radium July 1923).\nI wanted to see if we can detect radio-active deposits by means of the"
}