A.3个点(不包括试剂空白),0.03~0.7
B.5个点(包括试剂空白),0.03~0.3
C.5个点(包括试剂空白),0.1~1.0
D.5个点(包括试剂空白),0.03~0.7
E.5个点(不包括试剂空白),0.1~1.0