Apa nama bahan yang berfungsi sebagai cairan / gas pembawa zat aktif pada proses kromatografi ?

PHYTOCHEMISTRY QUIZ

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Health Sciences
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University
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Hard
agnis aditama
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Stationary phase
Volatile phase
Mobile Phase
Adsorb Phase
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Berapa ml volume etil asetat dalam komposisi fase gerak kloroform : etil asetat : Asam asetat anhidrat (2 : 3 : 1) dengan total bahan 600 ml ?
200
100
300
360
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa istilah untuk bahan yang didapatkan dari proses penyarian simplisia menggunakan pelarut yang sesuai ?
Ekstrak
Ekstraksi
Filtrat
Preparat
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Hitunglah berapa % rendemen ekstrak, jika diketahui berat segar daun jambu biji 15 kg, berat setelah di keringkan menjadi serbuk 10 kg, setelah di lakukan penyarian didapatkan ekstrak seberat 2500 g !
40
25
16,6
1666,6
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa nama metode ekstraksi jika menggunakan cara penyarian direndam, tanpa menggunakan panas dan secara kontinyu dilakukan pengadukan ?
Perkolasi
Digesti
Maserasi
Infundasi
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apa contoh pengujian untuk memenuhi persyaratan parameter spesifik dari ekstrak ?
ALT
AKK
Sisa Pelarut
Kandungan Zat Aktif
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Berapa nilai Rf 3 dari kromatogram yang menunjukkan noda yang terukur 5; 5,5; 6; 7 cm dengan jarak eluasi 8 cm ?
5/8
5,5/8
6/8
7/8
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