INSTRUMENTAL ANALYSIS ACS EXAM
SCRIPT 2026 COMPLETE QUESTIONS AND
FULL SOLUTIONS GRADED A+
⩥ What does selectivity mean? Answer: degree which method is free
from interference of other species
⩥ What does detection limit mean? Answer: min. concentration/ mass of
analyte detected with known confidence level
⩥ What are the criteria for selecting a method? Answer: precision, bias,
sensitivity, detection limit, concentration range, and selecitivity
⩥ What are the axis for the standard addition method? Answer:
absorbance versus standard volume
⩥ List the electromagnetic spectrum in order of increasing wavelengths.
Answer: gamma rays, x-rays, UV, visible, IR, microwave, radio
⩥ List the electromagnetic spectrum in order of increasing frequency.
Answer: radio, microwave, IR, visible, UV, x-rays, gamma
SCRIPT 2026 COMPLETE QUESTIONS AND
FULL SOLUTIONS GRADED A+
⩥ What does selectivity mean? Answer: degree which method is free
from interference of other species
⩥ What does detection limit mean? Answer: min. concentration/ mass of
analyte detected with known confidence level
⩥ What are the criteria for selecting a method? Answer: precision, bias,
sensitivity, detection limit, concentration range, and selecitivity
⩥ What are the axis for the standard addition method? Answer:
absorbance versus standard volume
⩥ List the electromagnetic spectrum in order of increasing wavelengths.
Answer: gamma rays, x-rays, UV, visible, IR, microwave, radio
⩥ List the electromagnetic spectrum in order of increasing frequency.
Answer: radio, microwave, IR, visible, UV, x-rays, gamma
