Which scientific instrument company first developed and commercialized the quadrupole mass spectrometer in the 1950s, revolutionizing chemical analysis?

The laboratory equipment industry has transformed dramatically over the decades, with companies pioneering technologies that revolutionized scientific research capabilities. This poll tests your knowledge about a significant innovation in scientific product development that changed how researchers approach analytical chemistry and biochemistry worldwide.

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Thermo Fisher Scientific (originally as Thermo Electron)
Agilent Technologies (formerly part of Hewlett-Packard)
Waters Corporation
Finnigan Corporation (later acquired by Thermo)