2243
A protocol is elaborated for the preparation and characterization of a quality control material ( QCM ) containing intrinsic concentration of cadmium ( Cd ) ( 0 . 8 microgram / L ) and lead ( Pb ) ( 13 . 4 micrograms / dL ) from bovine blood and an elevated QCM containing Cd ( 5 . 0 micrograms / L ) , mercury ( Hg ) ( 11 . 2 micrograms / L ) , and Pb ( 34 . 5 micrograms / dL ) from bovine blood spiked with aqueous spiking - solutions prepared with salts of Cd , Hg , and Pb .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None