Kromatografi lapis tipis (presentasi)

•

3 likes•146 views

Anita Theresia

thin layer chromathography atau Kromatografi lapis tipis salah satu jenis dari kromatografi planar

Science

Lapis Tipis terdiri dari:
Plat: kaca, Alumunium, plastik
Adsorben: silika gel, alumina, selulosa, dll
Macam-macam adsorben di pasaran:
Silika gel G, silika gel GF, silika gel H
Alumina H, Alumina HF
Selulosa

ADSORPSI
Adsorpsi adalah proses
pemisahan bahan dari
suatu campuran dengan
cara pengikatan bahan
tersebut pada seluruh
bagian adsorben cair yang
diikuti dengan pelarutan.
ADSORBEN
Persyaratan adsorben :
 Memiliki daya melarutkan bahan
yang akan diabsorpsi yang
sebesar mungkin (kebutuhan
akan cairan lebih sedikit, volume
alat lebih kecil).
 Selektif
 Memiliki tekanan uap yang
rendah
 Tidak korosif
 Mempunyai viskositas yang
rendah
 Stabil secara termis
 Murah

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Kromatografi lapis tipis (presentasi)

2. 

3. KROMATOGRAFI BERDASARKAN FASE GERAK

4. • • • •

5. Lapis Tipis terdiri dari: Plat: kaca, Alumunium, plastik Adsorben: silika gel, alumina, selulosa, dll Macam-macam adsorben di pasaran: Silika gel G, silika gel GF, silika gel H Alumina H, Alumina HF Selulosa

6. ADSORPSI Adsorpsi adalah proses pemisahan bahan dari suatu campuran dengan cara pengikatan bahan tersebut pada seluruh bagian adsorben cair yang diikuti dengan pelarutan. ADSORBEN Persyaratan adsorben :  Memiliki daya melarutkan bahan yang akan diabsorpsi yang sebesar mungkin (kebutuhan akan cairan lebih sedikit, volume alat lebih kecil).  Selektif  Memiliki tekanan uap yang rendah  Tidak korosif  Mempunyai viskositas yang rendah  Stabil secara termis  Murah

7. 1. 2. 3. 4.

8. • •

9. • •

10. •   

11. • ADSORBEN YANG BERSIFAT POLAR.

12.

13. o o

14. o o o o