SOO
oes 7 moe 7
aya a Pe da tees
10
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Ann. Acad. Scient. Fennicx
reer
AJIT.
Ul
Table 3
Results of calcium and “Sr analyses of the grass samples (Nos. 1—9 in Table 1).
Mean of two determinations.
Sample
No.
‘
.
‘
:
oats
i
hte Tae
—
Pe
_
4
:
:
;
ata!
.
.
Ca, %
Sr
Sr, upuc/kg of
Sr,
of ash
Buc/g of ash
dry weight
pyc/g of Ca
]
7.46
7.19 + 0.44
632 —
38
96+
6
2
6.54
5.77 + 0.37
594 —
38
89 +
6
3
4,
5.89
4.21
7.45 + 0.75
5.21 + 0.70
690 +
517 +
79
69
126+ 13
122 + 16
4,
5
6.39
7.85
5.75 + 0.73
6.43 + 0.59
570 +
528 +
73
48
92 + 12
824 T
§.09 + 0.71
635 +
90
661+
32
6
7
6.59
4.23
5.77 + 0.68
Ty
4.78
5.90 + 0.29
8
9
3.74
9.28
6.61 + 0.18
20.83 + 5.57
77+ 11
704+ 84
138 4 17
609 + 22
1581 + 420
177 + 3
224 + 60
123 +
6
From the results of the milk and grass analyses the ratios wuc *Sr/g Ca
in milk and grass have been calculated. The ratio of the values obtained,
the so-called »discrimination factory (DF) grass to milk, i.e.
auc Sr in milk
g Ca in milk
2
= DE,
»
upc Sr in grass
g Ca in grass
has been calculated and is presented in Table 4.
Table 4
Discrimination factor DF grass to milk calculated on the basis of the values reported
in Tables 2 and 3:
'
7"
aw
ee
cous
Sample No.
DF
Sample No.
DF
]
0.039
6
0.064
2
0.075
7
0.051
3
0.036
8
0.033
4
0.040
9
0.052
5
0.044
mean 1—9
0.048
Discussion
The Sr content of the »wide-area» milk samples (Nos. 10—15 in Tables
1 and 2) varies from 7.9 to 9.8, the mean being 8.7 uc *Sr/g Ca. The activity
of the samples taken in May and June from the Eastern factory »A» (Nos.
10 and 11) is ca. 15 % higher than that of the corresponding samples taken