V10_Capillary Electrophoresis on a Chip Quiz

Play an AI-generated podcast conversation about this lesson

What determines the size of the injection zone in capillary electrophoresis on a chip?

Sample outlet dimensions

Buffer size in the detection zone

Electrokinetic effects

Geometry of the channel intersection (correct)

Which method results in superior resolution in capillary electrophoresis on a chip?

Plug injection (correct)

Stack injection

Electrokinetic injection

Pressure driven injection

Why are conventional pumps not preferred for sample injection in capillary electrophoresis on a chip?

Low detection signal

Inability to control flow rate

High fluid resistance in small capillaries (correct)

Superior resolution

In capillary electrophoresis on a glass chip, what is the purpose of the channels labeled as outlets?

Buffer release Signup and view all the answers

What is one of the main advantages of using electrokinetic injection for sample introduction in capillary electrophoresis?

Controlled flow rate independently of capillary dimensions Signup and view all the answers

Why is detection signal lower with plug injection compared to stack injection in capillary electrophoresis on a chip?

To enhance resolution Signup and view all the answers

What is the main focus of Capillary Isoelectric Focusing (cIEF)?

Analyzing protein charge heterogeneity Signup and view all the answers

Which analytical technique is specifically mentioned for the analysis of up to 96 samples in the context provided?

LabChip GXII Touch HT Signup and view all the answers

In the lecture focused on Capillary Electrophoresis, which system is NOT mentioned for the analysis?

Bio-Rad Signup and view all the answers

What is the main advantage of Capillary Electrophoresis on a Chip over traditional methods?

Improved separation efficiency Signup and view all the answers

Which type of system is used for Capillary Electrophoresis on a Chip according to the provided information?

Agilent Bio-Rad Perkin Elmer 4200 TapeStation system Signup and view all the answers

What does 'WS 23' refer to in the context of the lecture by Prof.Dr.-Ing.Uwe Schnakenberg?

Winter semester lecture series Signup and view all the answers

In capillary electrophoresis on a chip, what determines the size of the injection zone?

The injection time and the electrophoretic mobility of ions in the sample Signup and view all the answers

Which component is responsible for the continuous stacking of the sample into the separation channel during injection time in capillary electrophoresis on a chip?

Sample inlet Signup and view all the answers

In capillary isoelectric focusing (cIEF), what is the primary factor that determines the separation of analytes?

Their isoelectric points Signup and view all the answers

What is the purpose of the electrodes in capillary electrophoresis on a chip?

To provide the driving force for electrophoretic separation Signup and view all the answers

In capillary electrophoresis, what is the significance of the variance ($\sigma^2$) of the initial sample plug?

It determines the resolution of the separation Signup and view all the answers

What is the purpose of the detector window in capillary electrophoresis?

To detect the separated analytes Signup and view all the answers