Spanish to English Science Fisheries Aquaculture

Hello,

I'm translating a news story about some research done on how to detect mercury on fish. The methodolody used by the research team is "análisis metaloproteómico" but I can't find how to say this in English.

Could anyone help me, please?

I provide with some more context:

"Un grupo de científicos realiza análisis metaloproteómicos para estudiar la expresión de proteínas que exhiben mercurio en sus estructuras".

Thank you in advance for your help.