Verification of foetal Down syndrome biomarker proteins in maternal plasma and applications in prenatal screening for Down syndrome

Table 1 the dilution of the standard sample

Vial	Volume of Diluent	Volume and source of BSA	Final BSA Concentration (ug/ml)
A	70ul H2O	10ul BSA	250
B	40ul H2O	40ul A	125 l
C	45ul H2O	30ul B	50
D	40ul H2O	40ul C	25
E	40ul H2O	10ul D	5
F	40ul H2O		0

ISSN: 2396-832X