16125
Chromatographic separations were done on a Symmetry C ( 18 ) column ( 100 mm x 4 . 6 mm , ID , 5 mu m ) at 35 degrees C with a linear gradient of methanol and 20 mM ammonium formate containing 0 . 2 % formic acid .
 Chemical: methanol; Chemical: ammonium formate; Chemical: formic acid
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: methanol; Chemical: ammonium formate; Chemical: formic acid