Exam 1 (Instrumental Analysis)

used to compensate for matrix effects

standard addition
What is a matrix?

when your analyte is dissolved or mixed (can interfere with analysis)
What is this a graph of?

Internal standard
What is this a graph of?

External standard
What are some types of software that can reduce noise?

signal averaging, amplifiers, filtering, modulation
What are some types of hardware that can reduce noise?

shielding or grounding, amplifiers, filtering modulation
What is the equation for response ratio?

RR= analyte response (area under curve)/internal standard response
When should you use external standards?

when you do not expect sample to sample variation
When should you use internal standards?

when the instrument is inconsistent (unstable instrument)
How does IR work?

by passing infrared light through the sample, the bonds vibrate, then based on transmittance and absorption you can determine where the bonds are
Resolution definition

the smallest change in value that the instrument can detect

Author

gbiebs

365753

Card Set

Exam 1 (Instrumental Analysis)

Description

Updated

2024-09-16T02:00:01Z