T
KHOA
P
NG
M T S KIM LO I TRONG TH T CÁ DIÊU H NG
NUÔI
NG B
PH
NG H I, T NH QU NG BÌNH B NG
chính quy
- 2017
T
KHOA
P
NG
M T S KIM LO I TRONG TH T CÁ DIÊU H NG
NG B
PH
NG H I, T NH QU NG BÌNH B NG
chính quy
Ngành
C
- 2017
SINH VIÊN
nào khác.
TT
1
Cadimi
2
3
Cd
Me
Chì
Pb
4
RSD
5
Cu
6
LOQ
7
LOD
8
Zn
9
Mangan
Mn
10
ppm
11
AAS
12
F-AAS
13
GF-AAS
14
UV- VIS
2.1.
B
........................................19
2.2
......19
2.3.
................................................................................................................. 22
.......22
B ng 3.1.
c và kh
ng c a cá diêu h ng...................................................28
....................................28
.......................................29
.................................30
..........................................30
.
........................................31
g 3.7.
y
..........................32
......................................................................................................................33
..................................................................................................................33
..35
.........35
Hình 1.1.
Hình 1.2.
Hình 1.3.
-
......................7
................7
......................................................................10
Hình 1.4. S
...............................................16
.......17
Hình 2.1.
.....................................20
...........................................................21
28
Hình 3.2.
...................................29
..............................30
Hình 3.4.
......................................31
....................................31
.........................................34
Hình 3.6.
bình
....................................................................................................................1
.................................................................................................................4
....................................................................4
.................................................................4
1
........................................................................4
................................................................................................................4
.............................................................................................................4
..................................................................................................................4
.................................................................................................................5
1.3
.........................................5
.......................................................................................................6
....................................................................6
......................................................................6
.........7
................................................................................................9
................................................................................................10
.............................11
.....................................................................................................................11
...............................................................................................................12
..........................................................................12
..............................................................12
...........................................................13
1.3.
..................14
AAS: Atomic absorption
spectrometer) .................................................................................................................16
..................................................17
.........................................................18
......................................................................................18
............................................................................................................18
..........................................................................18
.............................................................................................18
.......................................................................................................18
2.3.3. G
...........................................................................19
.............................19
.............................................................................21
ÁP PHÂN TÍCH..............................................................................22
..........................................................................22
...................23
...............................................................................................................23
.............................................................................................................24
....24
......................................................................24
............................................................................................................25
..............25
...................................................................................................................28
.......................................................................................28
...............................28
MANGAN, CHÌ VÀ K
............................................................................................28
.......................................................................................................................32
............................................................................................33
............................................................................................34
..........................................................................................................34
3.5.2.
.....................................................................................35
..................................................................................37
......................................................................................................................37
...................................................................................................................37
.............................................................................................38
..............................40
......................................................................................................................41
nh
Theo y
. Cadimi
mangan
là
Cadimi (Cd)
2+
(Cu)
xy hóa acid béo
chol
.
vitamin B1
1
. Mangan tham
.
Chì (Pb)
.
trong
-
-
-
(AAS)
2
[2]. Tuy nhiên, so
,
, tr
rô phi
và cá tràu. Trong
.
mà còn là
nhiên.
Phân
trong
AAS
cho mình.
3
,
,
0
Nam.
1060
xã
.
2
.
2
7,49 km (
1068
P
u
2,
2,
2, 3, 4 Phú Vinh).
(
: Red Tilapia)
:Oreochromis sp.,
cá
Cá rô phi (Cichlidae) có
Loài cá này có thân cao, hình h
,m
[22]
ng,
Cá
].
nhi
12%
4,5
cá
tôm, râu
4
lò
loài
25%) [21].
bè
500g/con; khi n
úc
.
ài (khi nuôi chung cá cái
;
; * Rô phi O. aureus x R
3.
methyltestosterone
1.3
5
g
-6
(nanogam, 10
-9
-
15%.
nh các kim
thì ta có:
= Em - E0 = hv
0
hay
E
h
c
và Em
.
Ei
6
và các
m
hay trong cuvet
Hình 1.1.
Eo
thái kích thích ;
; Em
+ hv: Photon kích thích. ; ,
I0
1
3
4
5
I
2
Hình 1.2.
-
7
4. Detector quang;
yên
A
K .l.C
lg
Tro
I0
I
2
Lamp, W
Lamp).
-VIS);
-
8
-
-220V và I = 3-50mA).
-350V) mà
catot
o
A = lg
= KaNL
a
là: A = KN
Tr
a
N = 3.1021
9
Cb
o(
nRo
nT
K).
rosol hoá (lít/phút).
N= KiCb
i
x
= Co
+
.
x
> Co
x
Hình 1.3.
Ht = Hn + Hd + HL +Hc
Hn
; Hd
;
.
n
10
HL
; Hc
g
ích thích
H n=
m
-3
cm-1.
d
H d = 1,76.10
5
0
-3
-1
cm-1
cm-1.
L
: H L = 12,04.1023.P.
2
2 1
(
RT A
1
)
M
c
o
/ mm,
th
t
-3500o
11
= Hn + H d + H L
15%).
-
-AAS).
a)
là không khí, oxi hay N2
12
hh
n
MexRy
xR y
(k)
Me (k) + h
hh>En
:
MexRy
Me (k) + h
-p
,
-50
-150o
-30 giây.
+ Tro h
hoá: 400-1500o
-30 giây.
13
.
.
Cho nên,
t
1.3.9.
-
- habit lamp) cho vùng
-
-
-
g
-
14
trong cuvet.
-
-
-
3
1% hay 2%.
-
-
: Nói chung c
2SO4
nên dùng axit HCl hay HNO3.
-
15