
KUIS HPLC
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Chemistry
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase gerak dalam HPLC biasanya berupa...
Gas inert
Pelarut organik atau campuran pelarut (misal: metanol-air)
Padatan halus
Larutan garam pekat
Minyak silikon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Detektor yang paling umum digunakan dalam HPLC untuk senyawa organik adalah...
Detektor konduktivitas
Detektor UV-Vis atau PDA (Photodiode Array)
Detektor ionisasi nyala (FID)
Detektor fluoresensi hanya untuk senyawa anorganik
Detektor NMR
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolom HPLC yang menggunakan fase diam non-polar (misal C18) dan fase gerak polar termasuk jenis...
Kromatografi fase terbalik (reverse phase)
Kromatografi fase normal
Kromatografi eksklusi ukuran
Kromatografi afinitas
Kromatografi ion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keuntungan HPLC dibanding kromatografi gas (GC) adalah...
Dapat menganalisis senyawa non-volatil dan termolabil
Lebih cepat untuk senyawa volatil
Tidak memerlukan pelarut
Deteksinya selalu lebih sensitif
Biaya operasional lebih murah
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sistem gradien dalam HPLC merujuk pada...
Pengaturan suhu kolom secara dinamis
Perubahan komposisi fase gerak selama analisis
Variasi tekanan injeksi
Penggantian kolom mid-run
Penyesuaian kecepatan detektor
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