26564
The analytical method is simple ( although the chemical derivatisation of the alpha - keto acids with dansylhydrazine is required ) , precise ( < 18 % RSD ) , accurate ( 90 - 110 % ) , sensitive ( 0 . 01 - 0 . 34mg / kg of defatted and freeze - dried meat depending on the alpha - keto acid ) and linear ( R > 0 . 99 ) over several orders of magnitude ( until 0 . 01 - 146 . 1mg / kg of defatted and freeze - dried meat depending on the alpha - keto acid ) .
 Chemical: alpha - keto acids; Chemical: dansylhydrazine; Chemical: alpha - keto acid; Chemical: alpha - keto 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: alpha - keto acids; Chemical: dansylhydrazine; Chemical: alpha - keto acid; Chemical: alpha - keto acid