spectrographically
/ˌspɛktrəˈɡræfɪkli/
adverb
- In a way that relates to or uses a spectrograph (an instrument that records and analyzes light or other radiation into its component wavelengths).
- The astronomer analyzed the star's light spectrographically to determine its chemical composition.
- The lab technician examined the sample spectrographically, identifying trace elements in the soil.
- By studying the aurora spectrographically, scientists learned more about the gases in the upper atmosphere.