3926
Concentrations of inorganic arsenic , as sum of arsenite ( As ( III ) ) and arsenate ( As ( V ) ) were determined in 600 composite samples by using inductively coupled plasma mass spectrometry .
 Chemical: arsenic; Chemical: arsenite; Chemical: As ( III ); Chemical: arsenate; Chemical: As ( V )
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: arsenic; Chemical: arsenite; Chemical: As ( III ); Chemical: arsenate; Chemical: As ( V )