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Which are acceptable corrective actions if method blank is elevated? (Select all that apply)

Digestion heating + stirring primarily ensures:

The wavelength calibration solution is used to calibrate the __________ scale of the MP-AES.

Select all the reasons ATR–FTIR is preferred over destructive fiber tests when sufficient sample is available.

When performing a wavelength calibration, which sample tubing color is used for the calibration solution in the 4200 MP-AES instrument?

ATR–FTIR is avoided in forensic fiber analysis because it permanently alters the sample and prevents later testing.

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

What must be done before placing the sample on the MP-AES instrument for analysis?

Standards should be prepared in the same acid matrix as samples.

Select all statements that correctly describe the difference between direct and secondary transfer of fibers.