Final answer:
Gravimetric analysis is a quantitative chemical analysis method that involves separating an analyte from a sample by physical or chemical processes and measuring its mass. In the case of dust analysis, a general method involves using sampling equipment to collect a sample of the dust and subjecting it to a treatment that causes a change in the physical state of the analyte.
The resulting mass measurement and relevant stoichiometry are then used to calculate the analyte concentration.
Step-by-step explanation:
Gravimetric analysis is a quantitative chemical analysis method that involves separating an analyte from a sample through a physical or chemical process, measuring its mass, and calculating its concentration based on stoichiometry. In the case of dust analysis, a general method involves using sampling equipment to collect a sample of the dust.
The dust is then subjected to a treatment that causes a change in the physical state of the analyte, such as precipitation or evaporation. The isolated analyte or the resulting precipitate is then weighed and used, along with known stoichiometry relationships, to calculate the concentration of the analyte.