13017
Techniques that combine mass spectrometry and imaging techniques ( matrix - assisted laser desorption / ionization , secondary ion mass spectrometry ( SIMS ) , and nanoSIMS ) have promise in addressing this problem .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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