Post on 16-Oct-2015
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.
:
:
(C6H12O6)
: :
, 2013. e
1. .......................................................................................................21.1. ..................................................................3-41.2. ...52. . ..........................................................62.1. ....................................................................................7-83. ...........................................................................................94. ...........................................................................................10-125. ...............................................................................135.1. .......................................................................145.2. .............................................................................156. ......................................................................................16 7. ...............................................................................................178. ................................................................................................18
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1.1.
pH-
, pH- 5.0-8.0.
, 2 mg, 2 % , . , 2 mg. .
15 ml, , , . 15 ml, , .
.
, 40 . . .
:
, , . .
:
, .
1.2.
()
1ml
1 ml , 4 ml
4 ml , 20 ml2 ml
20 ml ()100 ml10% ,
100 ml10% 50 ml( )
50 mg
50 mg , 200 mg
200 mg 100 mg
2. .
. . , , , ( ), . , . , . , ., .
. , .
2.1.
pH-
6.0-7.5.
, , .
.
, 40 . . .
:
, , . .
:
,
:
, . , , . , , .
3. Cn(H2O)n
. . . , . . : , , . , . , . ( ) , . . . . , , - . , , . .
4.
. . : , , , , , , , .
(+)-(, ). . . , . (+)- C6H12O6. . (II)- . - .
1. :
COOH H C OH |[O] OH C H H C OH H C OH CH2OH H C = O H C OH | [O] OH C H H C OH H C OH CH2OH
2.
g+ ( )
COO-NH4+ H C OH | HO C H +3NH3+H2O+2Ag H C OH H C OH CH2OH C = H C OH | C H + 2[g(NH3)2]OH H C OH H C OH CH2OH
3. Felingova reakcija
Oksidacija monosaharida sa Cu2+ jonima
COOH H C OH OH C H COOK H C OH + CHOH +2Cu2O H C OH CHOH CH2OH CHOH H C = O H C OH COOK OH C H + 2 CHO Cu H C OH CHO H C OHCOONa CH2OH
1. 2. 3.
. . 80% .( ) ( ) . . .
3.9 6.1 mmol ( ). , . . , , . . .
5.
5.1.
: Glucosi infundibile 5% ( 5% ) : :
1. NaOH, 0.1 mol/l
2. 0.05 mol/l 100.0 ml 1.27 g , I2, 2,0 g -, KI, . .
3.H2SO4, 0,5 mol/l 1000.0 ml 25 g Na2H2CO3 0.2 g H2CO3 .
4. -,Na2S2O3, 0.1 mol/l 1000.0 ml 25 g Na2S2O3 i o.2 g Na2CO3 .
5. () 1.0 g 5 ml 100 ml 100 ml . .
: 100 mg ( 2 ml), 30 ml NaOH 20 ml . 30 . 10 ml H2SO4 Na2S2O3 . 2 ml . .
: 0.1 mol/l Na2S2O3, , C6H12O6 Na2S2O3 .1 ml 0.1 mol/l Na2S2O3 9.01 mg C6H12O. 4.75 5.25% e.
5.2.
6.
:
V(Na2S2O3)=v(Na2S2O3) V(Na2S2O3)
V(Na2S2O3)=19.5cm3
V1(Na2S2O3)=8.5ml V2(Na2S2O3)=8.4ml
V3(Na2S2O3)=8.4ml
V(Na2S2O3)=
V(Na2S2O3)=19.5-8.43= 11.07ml
1.0ml 0.1mol/l Na2S2O3 9.01mg C6H12O6
11.07ml o.1 mol/l Na2S2O3 Xmg C6H12O6
x=
x=99.74 mgC6H12O6=0.09974g C6H12O6
W= *100%
W=*100%
W=4.98% C6H12O6
7.
% Na2S23. . .
8.
1. II III - 2. - - 3. - ,
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