17245
The results showed that Mn ( 2 + ) and Fe ( 3 + ) could be determined simultaneously in the range of 0 . 20 - 7 . 5 and 0 . 30 - 9 . 0 mgl ( - 1 ) , respectively .
 Chemical: Mn ( 2 + ); Chemical: Fe ( 3 + )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Mn ( 2 + ); Chemical: Fe ( 3 + )