Merits:

Flame photometry, coupled along with simple read-out devices, gives high sensitivity and high reliability for the determination of elements within the first two groups of the periodic table. Between these elements are sodium, lithium, potassium, calcium, magnesium, barium and strontium. The measurement of these elements is extremely useful in medicine, agriculture and plant science. The two significant merits of flame photometry are as follows.

• A sensitivities of the flame photometry for most alkali and alkaline earth metals lay within the ppm and sub-ppm range.
• Flame photometry is also successful within determining certain transition elements such as copper, iron and manganese.