Citômetro de fluxo
Caracterização detalhada por Citômetro de fluxo
O que é CIT
Uma técnica de análise avançada
Caracterização detalhada por Citômetro de fluxo
What sets us apart
We don't hand over a spectrum. We hand over the interpretation.
Any lab can return peaks and numbers. Our report reads the data. Three differences define what we deliver — illustrated below with a real, anonymized case.
Multiple techniques, one integrated report
We don't hand back five loose reports. We cross-reference every technique's results into a single reading — each signal checked against the others — to reach an answer, not a pile of data.
- Contamination investigation — identifying and tracing the source of a foreign species.
- Performance degradation — explaining why a batch behaves outside expectations.
- New supplier validation — proving equivalence before switching.
3 LDPE batches · 4 techniques converge, NMR reveals the difference
In semicrystalline polymer systems, thermomechanical processing variables influence chain conformational dynamics¹. Solid-state NMR resolves chemical environments at the nanometer scale², sensitive to changes not detectable by XRD or FTIR³.
Technical justification anchored in the literature
Every technique choice and every inference in the report is backed by peer-reviewed literature — with citations in the text. The conclusion isn't loose opinion: it's a traceable argument, defensible in an audit and in front of the client.
- Numbered citations linking claim to source
- Official standards and methods referenced per analyte
- Auditable reasoning end to end
Conclusion and expert opinion
The report closes with a clear position, signed by the Principal Investigator: what the data shows, what can't yet be claimed, and the next step. It includes an honest caveat on the limits of inference — what separates a technical opinion from a guess.
- Explicit technical position, not just results
- Inference limits declared honestly
- Next-step recommendation signed by the P.I.
Four techniques confirmed equivalence; only the solid-state NMR revealed the subtle conformational change not distinguishable by conventional QC — a molecular signature consistent with the atypical filtration behavior.
Without the industrial line's parameters, no direct causal correlation can be established — a complementary step is recommended for elucidation.
Aplicações de mercado
Onde a CIT entrega resultados
Aplicações de mercado
FAQ
Frequently Asked Questions about Flow Cytometry
What does flow cytometry measure that a plate reader-based assay cannot?
- Flow cytometry analyzes cells individually, one at a time, as they pass through a laser beam, measuring light scatter (indicating cell size and internal complexity) and multiple fluorescence signals simultaneously for each single cell — providing single-cell resolution and revealing distinct subpopulations within a sample, rather than the single averaged value a plate reader returns for the whole well.
What is the difference between forward scatter and side scatter in flow cytometry?
- Forward scatter (FSC) correlates with cell size, while side scatter (SSC) correlates with internal complexity or granularity (such as organelle content), and plotting the two together is a standard first step for distinguishing different cell populations or identifying debris before deeper fluorescence-based analysis.
How many parameters can be measured simultaneously on a single cell with flow cytometry?
- Modern flow cytometers can measure multiple fluorescence channels simultaneously — often more than ten on advanced instruments — allowing several different fluorophore-labeled markers (such as multiple cell-surface proteins) to be analyzed on the same individual cell at once, which is essential for detailed immunophenotyping.
Can flow cytometry detect apoptosis and cell cycle stage?
- Yes — with appropriate fluorescent markers, flow cytometry can distinguish live, early apoptotic, late apoptotic and necrotic cells (commonly using Annexin V and propidium iodide staining) and can determine cell cycle distribution (G0/G1, S, G2/M phases) based on DNA content staining, both standard applications of the technique.
What sample types are compatible with flow cytometry?
- Flow cytometry requires cells in a single-cell suspension, so it is directly compatible with cultured suspension cells, blood samples, and dissociated tissue samples; adherent cell cultures need to be enzymatically or mechanically detached and resuspended before analysis.
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