20245
In contrast to classical scattering techniques and X - ray fluorescence , this method of " grazing - incidence neutron - induced fluorescence " combines direct chemical specificity , provided by the label , with sensitivity to the interface , inherent to the evanescent wave .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None