private HashMap < String , Integer > getDNP_500 ( ) { HashMap < String , Integer > map = new HashMap < String , Integer > ( ) ; map . put ( "C" , 29 ) ; map . put ( "H" , 72 ) ; map . put ( "N" , 10 ) ; map . put ( "O" , 18 ) ; map . put ( "P" , 4 ) ; map . put ( "S" , 7 ) ; map . put ( "F" , 15 ) ; map . put ( "Cl" , 8 ) ; map . put ( "Br" , 5 ) ; return map ; }
Get the map linking the symbol of the element and number maximum of occurrence . For the analysis with the DNP database and mass lower than 500 Da .