SRM 915c calcium carbonate mass fraction standard

This standard reference material from the National Institute of Standards and Technology (NIST) will help calibrate procedures for calcium determinations used in clinical analysis and for routine critical evaluation of the ...

Unraveling secrets of microplastics released by tires

In Switzerland, tire and road wear particles are one of the biggest sources of microplastics released into the environment, yet the chemical compounds contained in those particles—and their effects—remain largely a mystery. ...

Possible organic compounds found in Mars crater rocks

A study published in Science analyses multiple rocks found at the bottom of Jezero Crater on Mars, where the Perseverance rover landed in 2020, revealing significant interaction between the rocks and liquid water. Those rocks ...

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