Trisomy 13, 18 & 21 Standard for counting based assays, 5% fetal fraction, 1ug in TE

A 1 µg multiplexed cfDNA standard containing a combined representation of Trisomy 13, 18, and 21, each at a 5% fetal fraction relative to a wild-type cfDNA background. This complex reference material is stabilized in TE buffer.

Designed as a comprehensive positive control for validating and monitoring counting-based Non-Invasive Prenatal Testing (NIPT) assays that simultaneously screen for multiple aneuploidies. It confirms the assay's ability to detect the most common trisomies in a single run.

For long-term stability, store at -20°C or below. This multiplex standard streamlines workflow validation, serving as an efficient tool for quality control and proficiency testing in clinical laboratories.