The instrument can be miniaturised for spaceflight to reveal the age of planetary materials.
The key to understanding the geologic history of the solar system is knowing the ages of planetary rocks.
Researchers validated the instrument - a laser ablation resonance ionisation mass spectrometer - by dating a rock from Mars: the meteorite Zagami, which formed about 180 million years ago, and fell to Earth in 1962.
"The beauty of the technique is that it requires little sample preparation, and the instrument is small and fast, making it appropriate for use by NASA and in field environments here on Earth," said lead author Dr F Scott Anderson from the Southwest Research Institute, Boulder, US.
The study was published in the journal Rapid Communications in Mass Spectrometry.
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