Exam Coverage
Exam coverage for Instrumental Analysis ACS Final Prep includes
comprehensive analytical chemistry concepts aligned with standards
from the American Chemical Society (ACS). It focuses on major
instrumental techniques such as spectroscopy (UV-Vis, IR, NMR,
atomic absorption/emission), chromatography (GC, HPLC),
electrochemical methods, and mass spectrometry. The exam also
evaluates understanding of calibration curves, quantitative analysis,
signal processing, limits of detection, sources of error, and method
validation.
,how to calculate calibration sensitivity
y=mx+b (m is the calibration sensitivity)
graph concentration vs mean analytical signal
how to find the analytical sensitivity
As (concentation) = calibration sensitivity/SD [ ]
,what are the difference between calibration sensitivity and analytical
sensitivity
calibration sensitivity is the slope of a calibration curve at the
concentration of interest while analytical sensitivity is a response to
the noise ratio
how to find the coefficient of variation for the mean of each of the
replicate sets
CV = SD/Average x 100
, how to find the detection limit for method?
3.3*SD(blank)/calibration sensitivity
voltage in a series
Vt = Vc + Vb + Va
Voltage in a parallel circuit
1/Veff = 1/Va + 1/Vb