Free AACC Analytical Techniques Questions and Answers

Question 1

What is spectrophotometry used for in clinical chemistry?

Accepted Answer

Determining analyte concentration

Answer

Measuring temperature

Answer

Detecting bacteria

Answer

Counting blood cells

Question 2

Which technique separates components based on size or charge?

Accepted Answer

Chromatography

Answer

Microscopy

Answer

Spectroscopy

Answer

Electrolysis

Question 3

What does a calibration curve help determine?

Accepted Answer

Concentration of unknowns

Answer

Sample color

Answer

Instrument noise

Answer

Reagent volume

Question 4

Which method measures the emission of light from atoms?

Accepted Answer

Atomic absorption spectroscopy

Answer

Titration

Answer

Centrifugation

Answer

ELISA

Question 5

What is the principle behind electrophoresis?

Accepted Answer

Electric charge & size

Answer

Light diffraction

Answer

Thermal expansion

Answer

Magnetic pull

Question 6

What is used as a blank in spectrophotometry?

Accepted Answer

Reagent without analyte

Answer

Water with analyte

Answer

Standard solution

Answer

Air

Question 7

What can affect the accuracy of photometric readings?

Accepted Answer

Scratched cuvette

Answer

Low humidity

Answer

Green light

Answer

Wavelength settings

Question 8

Which analytical method is commonly used to detect drugs?

Accepted Answer

Gas chromatography

Answer

Flow cytometry

Answer

PCR

Answer

Coulometry

Question 9

What does Beer's Law relate?

Accepted Answer

Absorbance to concentration

Answer

Mass to speed

Answer

Color to pH

Answer

Volume to temperature