
Mass Spectrometry
Authored by cita aryuni
Chemistry, Science
University - Professional Development
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah pernyataan yang benar berdasarkan teori kromatografi:
Fase normal : fase gerak hidrofilik, fase diam hidrofobik
Fase terbalik : fase gerak hidrofilik, fase diam hidrofobik
Fase normal : fase gerak hidrofobik, fase diam hidrofobik
Fase terbalik : fase gerak hidrofobik, fase diam hidrofilik
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut yang dapat diperoleh dari spektrometer massa, kecuali :
menghasilkan spektrum massa
menghasilkan analyzer massa
memilih ion tertentu dari spektrum
memfragmentasi ion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prinsip kerja ionisasi electrospray yaitu:
terbentuknya droplet campuran pelarut (fase gerak kromatografi cair) dan analit yang bermuatan listrik karena dilewatkan melalui celah sempit yang berpotensial listrik tinggi.
terbentuknya analit yang tidak bermuatan listrik karena dilewatkan melalui celah sempit yang berpotensial listrik tinggi
terbentuknya droplet pelarut (fase gerak kromatografi cair) yang bermuatan listrik karena dilewatkan melalui celah sempit yang berpotensial listrik tinggi
terbentuknya droplet campuran pelarut (fase gerak kromatografi cair) dan analit yang tidak bermuatan listrik karena dilewatkan melalui celah sempit yang berpotensial listrik tinggi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fragmentasi pada detektor spektrum massa terjadi pada :
Analyzer massa
Extraction cone
Collision cell
Decluster Potensial
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Komponen yang melakukan pemisahan ion hasil ionisasi berdasarkan perbedaan m/z masing-masing molekul yaitu
Analyzer massa
Extraction cone
Collision cell
Decluster potensial
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut merupakan jenis-jenis analyzer massa, kecuali:
Triple Quadrupole
Ion Trap
Time of Flight
Ion Flight
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut jenis larutan yang sering digunakan untuk ionisasi electrospray negatif :
Asam format 0.1%
Asam asetat
0,3 % NH4OH
Bukan salah satu diatas
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