pcr amplification
PCR tube sealing and evaporation
Define the seal, heated lid, plate film, volume loss and edge effects so a loose PCR cap is treated as a change in the reaction chemistry.
8 October 2026 · 8 min read
Knowledge centre
Methods a laboratory can check.
Guides, method explainers and sourcing notes for research laboratories. Written by the EVRINTH Editorial Team from published methods, with catalogue links for enquiry rather than stock claims.
All topicsBuffers and laboratory water26Cell culture26Chromatography26Cold chain and sample storage26Cytometry and microscopy26DNA sequencing26Gels and blotting26Gene expression26Genome editing26Immunoassays26Laboratory labware26Laboratory safety26Liquid handling26Microbiology26Molecular cloning26Nucleic acid purification26PCR and amplification26Protein biochemistry26Proteomics26Research sourcing and study design26
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520 articles
proteomics
Peptide fractionation overview
Single-shot runs versus offline peptide fractionation: depth, instrument time, sample use, concatenation and the losses that come with extra fractions.
8 October 2026 · 8 min read
buffers and water
pH electrodes storage and calibration
Store the glass electrode in its storage solution, calibrate with fresh buffers that bracket the target, and treat a tired slope as a failed control.
8 October 2026 · 9 min read
microbiology
Phage contamination as a concept
Bacteriophage contamination makes many cloning strains fail together and lingers on surfaces. This guide covers how to recognise the pattern and when to stop.
8 October 2026 · 9 min read
molecular cloning
Phosphatase treatment and self-ligation
When to strip 5-prime phosphates from a cut vector so it cannot recircularise, why the insert must keep its phosphates, and how leftover background looks.
8 October 2026 · 8 min read
buffers and water
Phosphate buffers and metal ions
Choose phosphate or PBS only after you name the divalent metals in the mixture. Phosphate precipitates with calcium and is a saline, not every enzyme buffer.
8 October 2026 · 8 min read
proteomics
Phosphoproteomics sample handling
Phosphates disappear to phosphatases at lysis and during warm, alkaline waits. Handling, enrichment class and site-localisation evidence decide whether a phosphosite is real.
8 October 2026 · 9 min read
cytometry and microscopy
Photobleaching and exposure time
How to tell photobleaching from a dim label, and when to change exposure, illumination, binning or gain before the signal is gone.
8 October 2026 · 7 min read
cell culture
Photos of morphology are data
A culture photograph is a record only with passage, scale and time since seeding. This glossary separates phase contrast, confluence and morphological words.
8 October 2026 · 7 min read
research sourcing
Pilot samples before a large cohort
Separate what a pilot may decide, such as yield, library QC, and logistics, from the biological effect only a designed cohort can support.
8 October 2026 · 9 min read
cell culture
Planning a culture week around incubator space
Treat incubator space as a reagent: how to plan a shared week so Monday is not overgrown, a power cut hits less, and quarantine stays apart.
8 October 2026 · 7 min read
cold chain
Planning aliquots before the first experiment
Before the first thaw, choose the one-use volume, the freeze-thaw count you will accept, the tube class, and the label.
8 October 2026 · 9 min read