CE Quiz

(a)   flow is unique to CE

Is electroosmosis desirable in all types of CE?

• Yes, it is desirable in all types of CE

• No, it is not always desirable

Seperations in CE are generally based on

• differences in charge to size ratios

• differences in melting points

• velocity of ions

• The US national debt

Elution order is determined by two factors which are:

• Flow rate

• Rate of Ions migrating in the electric field

• Rate of electroosmotic flow

• polarity

Which of the two sample introduction methods cannot be used in gel-filled capillaries

• Electrokinetic

• Pressure

What is the most popular absorption detector used in CE?

• Laser fluorescence

• HPLC

• GCMS

• UV/VIS

What is the most common sample introduction/ionization method used in CE-MS?

• porous glass insert

• Electrospray

• gas phase introduction

CE requires complicated sample prep and is a destructive method

• True

• False

All bands on the gel migrate at the same velocity, allowing for separation of cations and anions, in which type of chromotography?

• Micellular Electrokinetic

• Isoelectric Focusing

• Zone Electrophoresis

• Isotachophoresis

In CE, the rate of electroosmotic flow is

• greater than electrophoretic flow

• less than electrophoretic flow

• equal to electrophoretic flow