protein biochemistry
Detergents that ruin a later mass spec step
How SDS, Triton, NP-40 and Tween spoil a mass spectrum, which removal class to consider, and what to tell the person who will run it.
8 October 2026 · 9 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
protein biochemistry
Dialysis desalting and buffer exchange
Dialysis, a desalting column and centrifugal exchange move a protein into a new buffer on different clocks. Check pH and conductivity after the swap.
8 October 2026 · 6 min read
pcr amplification
Digital PCR partitions and precision
Choose digital PCR when you need a presence count from partitions, and see why that precision tracks partition number and the rare-event fraction.
8 October 2026 · 8 min read
immunoassays
Dilution series instead of a single guess
Why one antibody or sample dilution is a guess, and how a dilution series or checkerboard finds the window where the blank stays flat.
8 October 2026 · 9 min read
labware
Dishwasher residues and enzyme assays
How detergent film from a washer inhibits enzymes and cells, and which rinse and dedicated-glass terms belong in a method.
8 October 2026 · 7 min read
laboratory safety
Disinfectants and contact time
Contact time, concentration, and organic load decide whether a disinfectant can work. Ethanol and bleach both fail in predictable ways.
8 October 2026 · 9 min read
microbiology
Disposal of bacterial waste
Liquid cultures, agar plates, tips and sharps are different waste. The institution chooses inactivation. This page lists the questions to take to the safety office.
8 October 2026 · 8 min read
nucleic acid purification
DNA cleanup before a sensitive assay
Compare PCR cleanup, gel extraction, alcohol precipitation and bead cleanup by which leftovers each removes and which losses each accepts.
8 October 2026 · 10 min read
nucleic acid purification
DNase treatment and its limits
Decide when DNase should remove genomic DNA from an RNA prep, and where the enzyme can nick RNA or remain active into reverse transcription.
8 October 2026 · 9 min read
buffers and water
Documenting a buffer recipe with the salt form
Define every term a buffer record needs: salt form, hydrate, formula weight, pH, temperature, water grade, order of addition, and how the solution was sterilised.
8 October 2026 · 9 min read
molecular cloning
Documenting a construct so the next person can use it
Define the words on a minimal construct sheet so the next person can find the map, the frame, the strain, and what was never confirmed.
8 October 2026 · 7 min read
chromatography
Documenting a method someone else can run
Write a chromatography method another person can run: column, lot, phases, gradient, flow, temperature, injection, detection, and dwell.
8 October 2026 · 6 min read