6483
In contrast , a tiny and invariant ultrafiltrate yield ( 40 mu L ) was obtained using the HFCF - UF method , and the BP rate was around 72 % .
 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