:
+
+
-
+
+
-
(M) (M+),
( +)
, BX
( ).
.
.
2
( )
:
. +
,
+
,
g+
1+
Mg2+, Ca2+, Ba2+, Zn2+, (Fe2+ , Cu2+)
2+
Al3+
3+
1
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