70 lampiran a contoh perhitungan faktor retardasi
TRANSCRIPT
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70
LAMPIRAN A
CONTOH PERHITUNGAN FAKTOR RETARDASI (Rf)
Keterangan :
A = jarak yang ditempuh zat terlarut
B = jarak yang ditempuh pelarut
=
= 0,58
A
B
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71
LAMPIRAN B
CONTOH PERHITUNGAN RESOLUSI ANALIT (Rs)
Diketahui :
-Jarak yang ditempuh oleh tadalafil (tR1) = 64,5 mm
-Jarak yang ditempuh oleh matriks dengan noda terdekat (tR2) = 86,0 mm
-Lebar noda tadalafil (W1) = 15,0 mm
-Lebar noda matriks dengan noda terdekat (W2) = 10,5 mm
Rs =
= = 1,69
2(86 – 64,5)
2(tR2 - tR1)
W2+W1
15 + 10,5
w1 w2
ΔtR
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72
LAMPIRAN C
CONTOH PERHITUNGAN LOD TADALAFIL
Konsentrasi
(µg/ml)
Luas
Area
ŷ (y - ŷ)2 Keterangan
9,32 580,7 494,78 7382,24 a = -393,58
b = 95,313 12,42 662,5 790,90 16486,56
15,53 1085,6 1087,02 2,01 r hitung (0,9855) >
r tabel (0,8780)
y = 95,313 x –
393,58
18,64 1427,5 1383,14 1967,81
21,74 1678,8 1679,26 0,2116
Σ(y - ŷ)2 25838,84
(∑( )
)
= 92,8059
LOD : y = a + 3 Sb
= -115,162
x = 2,9210 ppm
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73
Cara Kerja Perhitungan
Ditimbang 500 mg kopi greng dan
minuman herbal penambah stamina,
diekstraksi dengan 4 ml MeOH,
divortex, kemudian disentrifus, filtrat
dimasukkan dalam labu takar 10 ml,
residu diekstraksi kembali dengan cara
yang sama, dan ditambahkan dengan
MeOH sampai garis tanda.
LOD →
= 1,168 mg
↑
10 ml → 29,210 µg
↑
1 ml → 2, 9210 µg
↓
Ditotolkan sebanyak 10 μl
↑
LOD → 2,9210 ppm
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74
LAMPIRAN D
GAMBAR KROMATOGRAM SAMPEL A
Kromatogram Sampel A
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LAMPIRAN E
GAMBAR KROMATOGRAM SAMPEL B
Kromatogram Sampel B
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76
LAMPIRAN F
GAMBAR KROMATOGRAM SAMPEL C
Kromatogram Sampel C
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77
LAMPIRAN G
GAMBAR KROMATOGRAM SAMPEL F
Kromatogram Sampel F
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LAMPIRAN H
GAMBAR KROMATOGRAM SAMPEL H
Kromatogram Sampel H
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LAMPIRAN I
GAMBAR KROMATOGRAM SAMPEL J
Kromatogram Sampel J
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80
LAMPIRAN J
DAFTAR HARGA r