1. His Breathalyzer used chemical oxidation and photometry to determine alcohol concentrations. 2. W . Irvine and colleagues used photoelectric photometry in the 1960s. 3. There are three main types of nebula : photometry difficult. 4. The development of the photoelectric cell by Jakob Kunz revolutionized astronomical photometry . 5. Although the flame test only gives flame photometry or flame emission spectroscopy. 6. His published papers are primarily in regard to variable stars and photometry . 7. It has become a standard instrument in photometry and radiometry. 8. The assay runs in a closed system on the photometry . 9. The methods used to perform photometry depend on the wavelength regime under study. 10. Photometry deals with the measurement of visible light as perceived by human eyes.
