17300
The method is based on the catalytic effect of silver nanoparticle ( AgNPs ) on the oxidation reaction of tartrazine by potassium iodate in the acetate buffer medium .
 Chemical: silver; Chemical: tartrazine; Chemical: potassium iodate; Chemical: acetate
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: silver; Chemical: tartrazine; Chemical: potassium iodate; Chemical: acetate