A sharp feature near ~2350 cm^-1 often indicates ________ interference from the atmosphere.

What might be the cause if unusually high background levels are observed across the spectrum?

Match the number with the part it identifies on the MP-AES:

Which subsystem most directly controls conversion of liquid sample into aerosol for plasma introduction?

Although organic compounds make up only a small percent of the Earth’s crust, they are of central importance because all known life is based on organic compounds.

Which observations support “uptake instability” as a drift cause? (select all that apply)

Standards, blanks, and unknowns should be prepared in a consistent acid matrix (commonly 2–5% HNO₃) to keep metals dissolved and reduce precipitation/clogging risk.

Which of the following is used to produce the plasma in MP-AES?

Due to carbon’s ability to ___________ (form chains with other carbon atoms), millions of organic compounds are known. 

The MP-AES instrument requires a warm-up time of ______ minutes for optimum performance.