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Pre-analytical variables in liquid biopsy: Improving reliability across multi-omic workflows

BioIVT
4 Sept 2026

This application note from BioIVT explores how pre-analytical variables can affect the sensitivity and reproducibility of liquid biopsy workflows. Discover practical guidance on blood collection tube selection, centrifugation, processing time, and storage for ctDNA, cfRNA/miRNA, extracellular vesicle, and protein biomarker analysis. Evidence from across the pre-analytical chain highlights the distinct stability requirements and failure modes of each analyte, helping researchers minimize assay noise and generate more reliable results across single-analyte and multi-omic studies.

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Resource type: Application note
Page count: 18
Read time: 28 mins

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BioIVT

BioIVT supplies high quality, ready to ship or custom plasma, serum, and whole blood—both normal and disease-state—collected from a diverse pool of consented donors under IRB-approved protocols or a wide variety of species.

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ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.BiomarkersBiomarkers are biological markers which can be measured and evaluated to indicate a biological state. The use of biomarkers in research and diagnosis can indicate a normal or disease state or drug response of cells / tissues. Biomarkers include genetic markers, cell surface markers such as antigens, antibodies or receptors and secreted molecules such as cytokines. An assay system is required for identification of biomarkers. :Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.Next Generation SequencingNext-generation sequencing (NGS), also known as whole-genome sequencing, high-throughput sequencing and massive parallel sequencing, produces and analyses thousands to millions of nucleotide sequences at once. Sequencing systems operate via varying technologies depending on the manufacturer, including sequencing by synthesis, ligation, pyrosequencing, ion semiconductor and single-molecule real-time sequencing. For NGS, library preparation is paramount to successful sequencing. In this section, explore a range of library preparation kits, from targeted, amplicon-based or hybridization-based kits including epigenomic, transcriptomic and genomic workflows to fragmentation kits. Find the best next-generation sequencing products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.GenomicsGenomics is the study of genomes, focusing on the sequencing, analysis, and interpretation of genetic material. It is key in understanding genetic diseases, evolutionary biology, and personalized medicine. Techniques like next-generation sequencing (NGS) are commonly used in genomics research. Browse our peer-reviewed product directory to find the best genomics tools, compare products, check reviews, and get pricing directly from manufacturers.Liquid BiopsiesLiquid biopsies are non-invasive tests used to detect cancer and other diseases by analyzing blood or other bodily fluids. This technique is gaining popularity for early detection, monitoring treatment response, and detecting minimal residual disease. Explore liquid biopsy solutions in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.miRNA

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