Set the demand
Four concentrations, duplicate wells and a duplicate blank. Reserve 240 µL per standard for the 200 µL well demand plus 20% extra.
BenchLineLab UtilityGet the appLab prep & assay planning
Prepare solutions.
Plan standards.
Keep your working.
Calculate dilutions and reagent quantities, plan standards and blanks across a 96-well plate, and save your setups for the next run—all offline on your iPhone.
One-time purchase · No subscription · No account
Built by Matthew McGoldrick, PhD biochemist and assay-development scientist. Meet the developer →
See the working
One setup. A clear preparation plan.
This illustrative series starts at 1,000 µM from a 2,000 µM stock. Each standard supplies two 100 µL wells, with 20% extra volume and no additional dead volume.
Include the next transfer
Prepare 450 µL of S1: 225 µL stock + 225 µL diluent. Transfer 210 µL into S2, leaving the required 240 µL.
Review and reuse
In BenchLine, inspect the preparation table and plate map, save the setup and export preparation or plate-map CSVs.
Ready for repeat work
Keep the details with the result.
Use the website guides for a quick reference. Use BenchLine to keep your inputs, units, formulas and saved setups together at the bench.
Prepare with context
Dilutions, molarity, reagent mass and common buffer recipes, with relevant reagent forms, assumptions and warnings.
Explore preparation →Plan standards and blanks
Review concentration levels, replicate allocation, preparation volumes and 96-well maps before you begin.
Explore standards planning →Pick up where you left off
Save local presets, reopen calculation history and resume an active session. Export supported reports with the inputs and working included.
See saved workflows →Inside BenchLine
Your bench tools, in one place.
Real iPhone screens. Choose a workflow to take a closer look.
Laboratory guides
Start with the calculation you need.
Worked examples, unit checks and practical considerations for routine preparation.
Standards & plate planningA worked preparation table and 96-well layout.Serial dilutionConcentration series, transfer volumes and bench checks.Dilution calculationsC1V1 = C2V2, unit checks and worked examples.Reagent massFrom molarity and final volume to required mass.Buffer preparationReagent forms, preparation quantities and pH checks.RPM & RCFCentrifuge conversion with the rotor radius made explicit.
Built by a scientist
Designed around real bench work.
Matthew McGoldrick is a PhD biochemist and assay-development scientist. BenchLine draws on his experience in laboratory workflows, biosensors and scientific data analysis.
About the developer →Transparent working. Local data.
Core calculations run offline. Presets and history stay on your device unless you export them. No accounts, subscriptions, ads or analytics SDKs in the app.
Formula references and calculation notes make the basis of supported outputs available for review.
Read the calculation notes →BenchLine Lab Utility for iPhone
Bring your next setup to the bench.
Lab prep and standards planning, with your calculations and saved work available offline.
Download on the App StoreOne-time purchase · No subscription · No account
For trained laboratory users
BenchLine provides calculation support. Independently check outputs against SOPs, reagent labels and equipment documentation.
Not intended for clinical diagnosis, treatment decisions, medication dosing or patient management. It does not replace assay validation, laboratory records or ELN/LIMS systems.
Professional-use guidance