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Teori kromatografi modern

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3/17/2011<br />

Soal :<br />

Efisiensi kolom<br />

Ukuran efisiensi:<br />

Jumlah pelat (N) atau<br />

H (HETP)<br />

Puncak (1) :<br />

Tr (1) = 2,5 menit<br />

W (1) = 5 menit<br />

Tr = 2,5 menit<br />

Tr = 2,5 menit<br />

Tr (2) = 2,5 menit<br />

W (2) = 0,2 menit<br />

L = 12,5 cm<br />

Puncak mana yg menghasilkan<br />

efisien kolom yang lebih baik?<br />

N<br />

t<br />

16(<br />

r<br />

W<br />

)<br />

t<br />

w<br />

2<br />

5,54(<br />

r<br />

)<br />

2<br />

1/ 2<br />

HETP = L/N<br />

High Equivalent to <strong>Teori</strong>tical Plate<br />

= tinggi pelat teori<br />

Kolom efisien: N besar, HETP kecil<br />

4

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