Flame Photometry

Flame photometry is an analytical technique used to measure the concentration of certain metals—like sodium, potassium, calcium, and lithium—in a sample. The sample is introduced into a flame, causing the metals to emit specific light wavelengths as they become excited. By measuring the intensity of this emitted light with a photodetector, scientists can determine how much of each metal is present. This method is valued for its speed, simplicity, and accuracy in analyzing metal ions in various samples, such as biological fluids, food, or industrial products.