Simultaneous Quantification
Simultaneous Quantification - Related Videos
08:45
Duplex Digital PCR for Simultaneous Quantification of Dual Genetic Markers
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2025
In this video, we demonstrate the duplex digital PCR (ddPCR) technique — a modification of the traditional PCR technique that is useful in detecting two different genetic markers simultaneously. A single PCR reaction is partitioned into nanoliter-sized emulsified droplets that are independently amplified, and the detection of differently colored fluorescence amplification signals from the fraction of droplets is used to compute the initial concentration of the target sequences.
12:14
A Duplex Digital PCR Assay for Simultaneous Quantification of the Enterococcus spp. and the Human Fecal-associated HF183 Marker in Waters
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Cited by 14 •
2016
This manuscript describes a duplex digital PCR assay that can be used to simultaneously quantify Enterococcus spp. and the HF183 genetic markers as indicators of general and human-associated fecal contamination in recreational waters.
12:11
Simultaneous Affinity Enrichment of Two Post-Translational Modifications for Quantification and Site Localization
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Cited by 9 •
2020
This workflow describes the performance of time- and cost-efficient enrichment of multiple protein post-translational modifications (PTMs) simultaneously for quantitative global proteomic analysis. The protocol utilizes peptide-level PTM enrichment with multiple conjugated antibodies, followed by data-independent acquisition mass spectrometry analysis to gain biological insights into PTM crosstalk.
08:03
Simultaneous Assessment of Cardiomyocyte DNA Synthesis and Ploidy: A Method to Assist Quantification of Cardiomyocyte Regeneration and Turnover
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Cited by 25 •
2016
Quantification of cardiomyocyte turnover is challenging. The protocol described here makes an important contribution to this challenge by enabling accurate and sensitive quantification of neo-cardiomyocyte nuclei generation and nuclei ploidy.
11:37
Simultaneous DNA-RNA Extraction from Coastal Sediments and Quantification of 16S rRNA Genes and Transcripts by Real-time PCR
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Cited by 24 •
2016
A protocol to quantify bacterial 16S rRNA genes and transcripts from coastal sediments via real-time PCR is provided. The methodology includes the co-extraction of DNA and RNA; preparation of DNA-free RNA; and 16S rRNA gene and transcript quantification via RT-q-PCR, including standard curve construction.
FAQs
Distinct detection reagents, signal labels, or assay regions allow each target to be assigned a separate measurable identity within the same analytical run. This separation lets the resulting signals be linked to particular cytokines, antibodies, antigens, or pathogen markers rather than treated as one combined measurement. The design preserves parallel measurement while enabling target-specific comparison.
Calibration standards convert measured signals into estimated concentrations and make results across targets more interpretable. Each analyte can be evaluated using its corresponding calibration reference, allowing researchers to compare biological signals on a concentration basis rather than relying only on raw signal intensity. This step is especially important when several immune or infection-related markers are assessed together.
Simultaneous quantification is valuable because coordinated signals can be examined side by side in the same biological sample. In immunology, patterns across cytokines or antibodies may characterize an immune response; in infection studies, combined antigen or pathogen-marker measurements can help distinguish infection-associated signatures. The parallel view supports interpretation of interactions among measured biological signals.
A typical workflow selects the analytes of interest, pairs each target with a distinct detection reagent, signal label, or assay region, and processes the sample through one analytical procedure. Calibration standards are included to support concentration estimates, after which target-specific signals are compared. This sequence produces a coordinated dataset without requiring separate analyses for every analyte.
Sample conservation is a practical advantage when biological material is limited. Measuring several targets in one assay reduces the need to divide the sample across separate analyses, which preserves material for additional measurements. The same-sample design also makes direct comparison more meaningful because the analytes come from a shared experimental context.
Applications extend from biomarker discovery to disease monitoring and treatment assessment. A multiplex measurement can reveal combinations of cytokines, antibodies, antigens, or pathogen markers that would be less informative if considered separately. In infection and immunology studies, these results support characterization of immune responses, identification of infection-associated patterns, and evaluation of how treatment changes biological signals.