microchemistry

Microchemistry is a branch of chemistry that deals with very small quantities of substances, typically milligrams or less.

It encompasses both analytical techniques for detecting trace amounts and experimental methods that use minimal reagents.

The field developed partly from practical necessity—when samples are scarce or expensive—and partly from the recognition that smaller-scale reactions can be faster, safer, and less wasteful.

The forensic lab relied on microchemistry to analyze the tiny blood sample.