AND HELD
CHAK AAV ARTE
Tv
ante t
Sudic ae Desse tintion of food rations eollvetid at
Rongeag Tsiand in Septemver, 1939 Couch sample
lar and it wae impractical to iollow each iadividual
throusnout tae day, Therefore, all of the sampics
couceted (Table 1) should orobably be considered
us erring toward the low side jor total consumptian. However, there does appear to be a reasonably agreement with quantities listed by Mfurai
isa Jtehe face).
.
Satine
Ha.
i
Deserinnyars
otal
Waetwt dis ar
ww
we
a) Pandanus oaste, boled
(1934)
(1957)
rice and bused dsn
(mixed)
b) Party baked bread dougi
beer
oc}
2
3
374.63
quanitative data in these areas.
172.55
constant weigut im the laboratory at Seattle
Table 1), The entire dict tor cach individual was
tien homogenized in water with a high-speed
biencer, dried at 58°C, und pulverized to a fine
Tae components of each sampie were Cricd ta
$2
W3
ay
b)
3
16
c}
23
jG
}
20
249
a)
2)
at
ey
32
powder. Subsamples of the powder were iucen ior
fut, protein, carbohydrate, und radiocuenical anai-
$7.12
S-in, toaiium-activated sodiuin jocice crystal used
in conjunction with a 236-channei analyzer with a
dighal prict-out, The toral counts per minute
17
13
t)
a}
b)
¢) Rice and fsh mixed
mux, not saved)
72
37
S06
(321.69
Following analysis Ly gamma spectroscopy, the
of IN HNO, Strontium-90 was cetermincd on an
aliquot by the method ot Kawabata and Held
81
a} Rice and fish mixed
by Bread, local
ce) Rice
243
30
197
203.16
6
a)
b)
c)
d)
ve)
iy
g)
203
203
126
73
30
291
154
484.10
125
26
-314.90
a} Fish, baked
155
440.50
OJ
145
Breadiruit, baked
Coconutw based dough
Fish, baxed
Sread, local
Coconut, entire
Rice, boiled
Sardines, canned
a) Pandanus keys, raw
b) Goatrish, baked
c) Sardines, canned
d} Rice, boved
TN
Det fayest
WTCAG, Cat
c> Bully beer
a) Sardines, canned
9
wit standards with an error of =z 109.
ashed samples were Gissolved in a known vouume
3
8
under the photopeak were calculated oy summing
counts per minute of all channels incluced in the
peux aud subtracting the background counts. The
counting eiiciency for the gamma cuergies meusured Was determined dy calibrating the instrument
aD
d) Bread, locai (coconut
7
yses. Portions weighing 40-250 g were wet-ashed
with HNOs and H.O., and the ash dried in 250-ml
beakers for gamma-ray spectroscopy.
The gamiua-countinyg equipment consisted Gi a
24
3)
¢)
*
253
41938), in which a combination of nitric acid pre-
cipitation aud ion-exchange procedures is used.
Calcium was determined by permanganate titration of oxalic actd and confirmed by dame spectrophotometry, with the internal standard technique
ot Chow and Thompson (1955). Potassium was
determined by fame spectrophotometry at 766-my
wavelength, and independently condrmed with esti-
mation of patassium by titration of the cobaltinitrite with potassium permanganate (Hibbard and
Stout, 1933). Sodium was determined at 589-m,
wavelength The standardization procedure and
general function of the system have been described
by Chakravarti and Joyner (1960).
{n determining imagnesium, an alieuot of the
ashed sample was dissolved in Q1M HCi and the
solution passed througn a Dowex-50 X8 160-200
101
24
‘3
resin colunin of precalculated capacity. Interfering
anions were removed by elution with twvo-column
volumes of distilled water. The resin was then
66
94
e) Rice, dotted
622
a} Rive and fish oixed
O} Rice asd ash mixed
421
6+
from a study at Majuro Atotl Catala
sotnted our the dimeuities of obtuining
stripped of cations with three-coiumn volumes of
2N HCl, and the eluate was neutralized to methyl
orange with concentrated NEVO, Calcium was
262.30
removed by precipitation wita ainmonium oxalate
iollowed by boiing and filtration, The filtrate was
L
°
o
j
2
Ce Om AY
TR a
A,
moa
.
tet Se ares come
SO
wy
.* “1
.
oe