In fiber evidence analysis, secondary transfer occurs when fibers move directly from the original source to the suspect’s clothing.

What safety equipment is necessary when working with nitric acid and the MP-AES instrument?

Gravity filtration may be required to protect the nebulizer from particulates.

The filtration step in the experiment is performed to remove any undissolved solids from the solution.

Trace metal analysis requires precisely and accurately prepared [S], [R] standards and [C] standards to ensure accurate and valid results. 

Polyester fibers are most reliably indicated by:

Fibers fall into two categories: 

If you dilute 10.00 mL digest to 100.00 mL, the DF is:

Prepare 100.00 mL of [A] mg/L Cr from a [B] mg/L stock. Find V1. (Report answer to 2 decimal places)

Items that must be in the final report paragraph: (Select all that apply)