Trisomy 21 Standard for counting based assays, 5% fetal fraction, 125ng in 5mL plasma

A 125 ng cfDNA standard representing Trisomy 21 at a 5% fetal fraction, pre-spiked into 5 mL of DNA-depleted human plasma. This material is a commutable, true patient sample mimic for assessing the entire NIPT testing process.

Functions as a crucial full-process positive control for counting-based NIPT assays. It validates the complete workflow from cfDNA extraction to data analysis, ensuring accurate and reliable detection of Trisomy 21 (Down syndrome).

The clinically relevant plasma matrix makes this standard ideal for evaluating extraction protocol efficiency and for use in routine quality control. Store as recommended to ensure material integrity.