spektrofotometri 1
Post on 25-Feb-2018
267 Views
Preview:
TRANSCRIPT
-
7/25/2019 Spektrofotometri 1
1/25
ANALISA KUANTITATIFLOGAM/MINERAL SECARA
SPEKTROFOTOMETRI
Kelompok 8Amiza Zulf (073.!.0!7"#u$i P%a&ama A%if'(073.!.03"
)a*i$ Pa'$u Tua073.!.0+
-
7/25/2019 Spektrofotometri 1
2/25
. Pengertian
S1&%22&2m&% S%aa'
A&2m (SSA" a&au A&2mi4
A562%&i2'S4&%22&2m&% (AAS"
a$ala 6ua&u ala& 8a',
$i,u'a1a' a$a m&2$a'ali6i6 1ua'&i&a&i u'&u1
''&ua' u'6u%9u'6u%
l2,am $a' m&al2i$ 8a',
5%$a6a%1a' a$a
'8%aa' a562%56i
%a$ia6i 2l a&2m 55a6.
-
7/25/2019 Spektrofotometri 1
3/25
B. Komponen lat
. Lamu Ka&2$a
Lamu 1a&2$a mmili1i ma6a a1ai
a&au umu% ma1aia' 6lama 000 :am.
Lamu 1a&2$a 5%u',6i 65a,ai
6um5% 4aa8a u'&u1 mm5%i1a'
'%,i 6i',,a u'6u% l2,am 8a', a1a'
$iu:i; a1a' mu$a &%16i&a6i
-
7/25/2019 Spektrofotometri 1
4/25
Lamu 1a&2$a &%5a,i m':a$i $ua
ma4am; 8ai&u
. Lamu Ka&2$a M2'2l2,am 30000K
-
7/25/2019 Spektrofotometri 1
6/25
3. )u4&i',
)u4&i', m%ua1a' 5a,ia' 4%252',
a6a u'&u1 m'8$2& a6a a&au 6i6a
m5a1a%a' a$a AAS; 8a',la',6u', $iu5u',1a' a$a
4%252', a6a 5a,ia' lua% a$a a&a
5a',u'a'; a,a% a6a 8a', $ia6il1a'
2l AAS; &i$a1 5%5aa8a 5a,i
-
7/25/2019 Spektrofotometri 1
7/25
. K2m%62%
Ala& 8a', &%i6a $',a' mai' u'i&.
#%u',6i u'&u1 m'6ulai 15u&ua' u$a%a
a$a -a1&u m5a1a%a' a&2m.
?. #u%'%
5%u',6i 65a,ai &ma& a'4amu%a' ,a6
a6&il'; $a' a@ua5i$6; a,a% &%4amu%
m%a&a; $a' $aa& &%5a1a% a$a ma'&i1 ai
T%$aa& lu5a', 8a', m%ua1a' %266 a-al
',a&2mi6a6ia' '8ala ai
-
7/25/2019 Spektrofotometri 1
8/25
. Sum5% a&2mi6a6i
Sum5% a&2mi6a6i $i5a,i m':a$i $ua 8ai&u
6i6&m '8ala $a' 6i6&m &a'a '8ala.
7. #ua',a' a$a AAS
)i6ima' $i $alam $%i,' $a' $il&a11a'&%i6a a$a AAS.
+. M2'21%2ma&2%
5%u',6i u'&u1 mmi6a1a' %a$ia6i 8a', &i$a1
$i%lu1a' $a%i 61&%um %a$ia6i lai' 8a',
$ia6il1a' 2l Hallow Cathode Lamp
-
7/25/2019 Spektrofotometri 1
9/25
. )&1&2%
#%u',6i m',u5a '%,i 4aa8a m':a$i
'%,i li6&%i1; 8a', mm5%i1a' 6ua&u i68a%a&
li6&%i1 5%u5u',a' $',a' $a8a %a$ia6i 8a',
$i6%a 2l %mu1aa' 8a', 1a.
0. Si6&m ',2la
5%u',6i u'&u1 m',2la 1ua& a%u6 $a%i
$&1&2% m':a$i 56a%a' $a8a 6%a a&2m
&%a'6mi6i 8a', 6la':u&'8a $iu5a m':a$i
$a&a $alam 6i6&m m5a4aa'
-
7/25/2019 Spektrofotometri 1
10/25
. Si6&m m5a4aa'
Si6&m m5a4aa'
m%ua1a' 5a,ia' 8a',
m'amil1a' 6ua&u a',1a
a&au ,am5a% 8a', $aa&
$i5a4a 2l ma&a.
-
7/25/2019 Spektrofotometri 1
11/25
C. Fungsi alat
S1&%22&2m&% S%aa' A&2m
5%u',6i u'&u1 m''&u1a' 1a$a%
12'6'&%a6i $a%i u'6u% m&ali1 u'&u1
1'&i',a' m$i6 $alam
mlia%aa' 16a&a'; 6%&i
1al6ium; ma,'6ium; &m5a,a;
6',; $a' 56i.
-
7/25/2019 Spektrofotometri 1
12/25
Slai' i&u S1&%22&2m&% S%aa'
A&2m :u,a $aa& $i,u'a1a' u'&u1
m''&u1a' aa1a 25a&925a&a'
&%au&i1 &i',1a& 6%&i li&ium
&la $i4aai $alam $a%a $a' :u,a
$aa& m'$&16i @ua'&i&a&i 1a$a%%a4u' a$a l2,am.
-
7/25/2019 Spektrofotometri 1
13/25
D. Prinsip kerja
L & &
-
7/25/2019 Spektrofotometri 1
14/25
Lamu &%a'6m 6 a' u'&u
m''&u1a' i6i $a%i 6ua&u a'ali&
$alam 6aml 8a', $i5%i1a'; i&u
a%u6 $i1a5u&1a'. A&2miz%6 ali',
umum $i,u'a1a' 6aa& i'i a$ala ai$a' l4&%2&%mal (&a5u', ,%af&"
a&2miz%6. A&2m 1mu$ia' a%u6
$i6i'a%i 2l %a$ia6i 2&i1; $a'
6um5% %a$ia6i 5i6a 5%a6al ,a%i6
-
7/25/2019 Spektrofotometri 1
15/25
%a$ia6i 1mu$ia' ml-a&i
m2'21%2ma&2% $alam %266
u'&u1 mmi6a1a' %a$ia6i
lm'966if1 $a%i %a$ia6i lai'
8a', $ia'4a%1a' 2l 6um5%
%a$ia6i; 8a', a1i%'8a $iu1u%
$',a' $&1&2%
-
7/25/2019 Spektrofotometri 1
16/25
E. Cara kerja
. Mm5u1a ,a6 &%l5i $aulu; 1mu$ia'
12m%62%; lalu $u4&i',; mai' u'i&; $a'
12mu&% 64a%a 5%u%u&a'.
!. #u1a %2,%am SAA (S4&%um A'al86 S4iali6&".
3. Ma6u11a' '2m2% lamu 1a&2$a 8a', $ia6a', .
. Pili u'6u% 8a', a1a' $ia'ali6i6 $',a' m',1li1
la',6u', a$a 68m52l u'6u% 8a', $ii',i'1a'.
-
7/25/2019 Spektrofotometri 1
17/25
?. M',a&u% a%am&% 8a',
$ia'ali6i6.
. Tu',,u i',,a 6l6ai -a%mi', u.
7. Kli1 i42' 5%,am5a% 5u%'%/m5a1a%; 6&la m5a1a% $a'
lamu m'8ala ala& 6ia $i,u'a1a'
u'&u1 m',u1u% l2,am.
+. Ma6u11a' 5la'12; $i$iam1a' i',,a
-
7/25/2019 Spektrofotometri 1
18/25
. Ma6u11a' 6aml i',,a 1u%*a 'ai1 $a' 5l21
5a%u $ila1u1a' ',u1u%a'.
0.S&la ',u1u%a' 6l6ai; $a&a $aa& $i%2l
$',a' m',1li1i42' %i'& a&au a$a 5a%i6 m'u
$',a' m',1li1 fl lalu %i'&.
.Aa5ila ',u1u%a' &la 6l6ai; a6i%a6i1a' ai%
$i2'i6a6i u'&u1 mm5ila6 5u%'% 6lama 0
m'i&; ai $a' lamu 5u%'% $ima&i1a'; %2,%am
a$a 12mu&% $ima&i1a'; lalu mai' u'i& AAS;
1mu$ia' 12m%62%; 6&la i&u $u4&i', $a'
&%a1i% ,a6.
-
7/25/2019 Spektrofotometri 1
19/25
F. Cara kalibrasi
M&2$ AAS &%ma6u1 $alam 1a&,2%i
m&2$ 12ma%a&i B 61ala a562%5a'6
$a%i AAS &%65u& a%u6 $i1ali5%a6i
$',a' 6ua&u $%& 6&a'$a% 8a',
$i1&aui 12'6'&%a6i'8a $',a'
a1u%a& (a&au m',,u'a1a' CRM B
C%&if$ R%'4 Ma&%ial6".
-
7/25/2019 Spektrofotometri 1
20/25
Ca%a Kali5%a6i
top related