17430
The molar absorptivity and Sandell ' s sensitivity values of the system 1 and the system 2 were 1 . 829 x 10 ( 4 ) and 1 . 813 x 10 ( 4 ) mol ( - 1 ) cm ( - 1 ) and 0 . 0096 and 0 . 0097 mu g cm ( - 2 ) respectively .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None