On-site qPCR for faster, more focused MIC monitoring
Detect and quantify selected bacteria, Archaea and microbial functions close to the sampling point. MICBUSTERS combines practical sampling, DNA extraction, ready-to-use assays, portable thermocycling and interpretation support in one compact workflow.
Not sure which targets you need? Start with the asset, sample type and operational decision. We will help define a focused first panel.
Move beyond “are microbes present?”
Microorganisms are common in industrial systems. The useful question is usually more specific: which group or microbial function is present, how much is detected, where is it found and is the signal changing after treatment or over time?
Identify relevant targets
Select broad microbial groups, functional genes or mechanism-related biomarkers that match the asset and the monitoring question.
Quantify the signal
qPCR measures a selected DNA target rather than relying on visible growth in one culture medium or a single broad biomass proxy.
Trend what matters
Compare locations, campaigns and treatment periods using a consistent workflow, controls and reporting basis.
What is quantitative PCR?
Quantitative polymerase chain reaction, usually shortened to qPCR or real-time PCR, is a molecular method that detects and quantifies a selected DNA sequence while that sequence is being amplified.
The method repeatedly copies a selected DNA fragment. Fluorescence increases as the target is amplified. A validated calibration converts the measured signal into a target quantity, commonly reported as gene copies per volume, mass, area or sample.
A lower quantification cycle generally indicates more starting target. However, raw Cq values should not be compared blindly across different assays, instruments or sample matrices. Calibration, efficiency, detection limits and controls matter.
Select
Choose a DNA target that represents the organism, group or function of interest.
Amplify
Target-specific primers copy that DNA fragment over a controlled series of cycles.
Measure
The instrument records fluorescence during amplification rather than only at the end.
Quantify
The signal is converted into a reportable amount and checked against the run controls.
What can targeted qPCR measure?
A qPCR panel should not be a generic shopping list. It should be selected from the process conditions, sample type, suspected mechanism and decision that the result must support.
Targeted qPCR detects only the targets included in the panel. Broader community discovery generally requires sequencing.
Why perform qPCR on-site or near-site?
Remote assets, unstable samples and operational deadlines can make a central laboratory workflow slow or difficult. A controlled field workflow shortens the path between sampling and interpretation.
Reduce delay
Start sample preparation and measurement without waiting for international shipping or laboratory scheduling.
Protect sample context
Process or preserve the material close to collection and document the sample before conditions change.
Check quality early
Controls can reveal inhibition, extraction problems or an uninformative sample while the field team is still available.
Act within the campaign
Use early results to refine sampling, compare locations or decide which material needs further laboratory analysis.
From industrial sample to decision-ready information
The instrument is only one part of a defensible molecular measurement. MICBUSTERS combines the analytical steps with sampling support, controls, training and interpretation.
Define the question
Clarify whether the objective is baseline mapping, MIC investigation, souring control, treatment verification or routine surveillance.
Collect and preserve
Select water, filter, deposit, corrosion product, pig debris, biofilm or swab samples from locations that represent the process.
Extract and control
Release and purify DNA, then use process controls to detect poor recovery or inhibition from the industrial matrix.
Run and interpret
Quantify the selected targets and interpret them with sample context, chemistry, operations and corrosion evidence.
qPCR, culture, ATP and sequencing are not interchangeable
Each method measures a different biological property. A stronger monitoring programme uses the technique that matches the operational decision and combines methods where they provide complementary evidence.
| Method | What it measures | Typical speed | Strongest use | Main limitation |
|---|---|---|---|---|
| Targeted qPCR | Selected DNA targets from organisms, groups or microbial functions | Approximately two hours on-site with a prepared workflow | Specific quantification, location comparison and trend monitoring | Only detects selected targets and standard DNA qPCR is not a direct live/dead test |
| Culture / MPN | Organisms that grow under the selected medium and incubation conditions | Days to weeks | Recoverable growth under defined conditions and historical trend programmes | Many environmental organisms do not grow in the selected test conditions |
| ATP | A broad ATP-derived biological signal | Minutes | Rapid broad response and biomass or activity trending | Does not identify which microbial group or function produced the signal |
| Sequencing | Broader taxonomic or functional community information | Usually days or longer | Discovery, community profiling and hypothesis generation | More data, analysis and turnaround than targeted routine monitoring |
Turnaround depends on sample type, workflow, number of targets, transport and reporting requirements.
What qPCR can tell you — and what it cannot
Clear limitations make molecular data more useful. qPCR is a powerful line of evidence, but it should not be presented as a stand-alone corrosion diagnosis or a direct corrosion-rate measurement.
qPCR can support
- Detection and quantification of selected microbial targets.
- Comparison between locations, sample types and monitoring rounds.
- Tracking whether selected targets decrease, persist or return after treatment.
- Selection of follow-up samples, assays or broader sequencing work.
qPCR alone does not prove
- That every detected cell is currently alive or metabolically active.
- That the detected target is located at the actual corrosion interface.
- That microorganisms caused the observed damage.
- That one universal gene-copy threshold predicts a corrosion rate in every asset.
Practical applications for industrial teams
MICBUSTERS is designed for organisations that need targeted microbial information close to operational decisions, without building a conventional molecular laboratory at every site.
See what on-site qPCR would look like for your sample
Tell us whether you work with produced water, injection water, deposits, pig debris, corrosion products, sludge, biofilm or surface swabs. We will focus the discussion on your actual monitoring decision.
Questions about qPCR for MIC monitoring
What is the difference between PCR and qPCR?
How quickly can MICBUSTERS produce a qPCR result?
Does a positive qPCR result prove microbiologically influenced corrosion?
Does standard DNA qPCR measure only living microorganisms?
Which sample types can be analysed?
Can qPCR test for every microorganism in one run?
Do we need an existing molecular laboratory?
Related MICBUSTERS resources
- Bustin et al. (2025), MIQE 2.0: revised guidelines for qPCR design, validation, quality control, analysis and reporting.
- AMPP TM21465-2024, Molecular Microbiological Methods—Sample Handling and Laboratory Processing.
- ASTM D8412-21, qPCR guidance for microbial contamination in liquid fuels and fuel-associated water.
This page is intended for informational and educational purposes and does not replace project- or site-specific engineering or scientific assessment. MICBUSTERS has a commercial interest in MIC monitoring solutions, including an on-site qPCR kit. MICBUSTERS specialises in measuring microbiological processes that can contribute to the deterioration of metals and industrial assets.
