Emission spectra of copper and argon in an argon glow discharge containingsmall quantities of hydrogen

The influence of hydrogen contained in a sample or otherwise introduced int o a glow discharge source (GDS) is here extensively experimentally presente d for the case of copper as a sample by means of the addition of small quan tities of molecular hydrogen (< 1% relative partial pressure) to the argon carrier gas. The progressive addition of molecular hydrogen causes differen t intensity changes particular to the individual lines of different species such as atomic (Cu I) and ionic (Cu II) copper, and also atomic (Ar I) and ionic (Ar II) argon. Some interesting features of the emission spectrum of hydrogen such as its line, band and even continuum spectrum are observed. It was also found that the depth resolution becomes worse even at very low concentrations of hydrogen.