Dr. Elara Vance stared at the worksheet on her lab bench. It wasn't just any worksheet; it was the worksheet—the one she’d designed a decade ago as a teaching assistant, now smudged with coffee rings and the graphite ghosts of erased answers.
The Trace Evidence
Section 3 was where things got interesting: List three spectral interferences and two chemical interferences that could cause false low results. atomic absorption spectroscopy worksheet
Not safe. Deadly.
Too safe.
Elara didn't write an answer. She printed the new data, stapled the old worksheet to it, and walked to the district attorney’s office. The Trace Evidence Section 3 was where things
She aspirated the new solution. The hollow cathode lamp for lead flickered to life, shooting a precise violet beam through the flame. The detector chattered. The software plotted a new point. Too safe