EC-MS Technical and Application Notes
Our EC-MS technical and application notes offer step-by-step guides for setting up your instrument and applying it to real electrochemical measurements.
EC‐MS Technical Notes
EC-MS Technical Note #5: step-by-step QMS peak and EM voltage tuning in PV MassSpec, with signal examples from a well-tuned system.
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EC-MS Technical Note #5: step-by-step QMS peak and EM voltage tuning in PV MassSpec, with signal examples from a well-tuned system.
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Practical guidance for OER experiments with EC-MS — from chip selection and cell cleaning to CO2/bicarbonate pitfalls in alkaline electrolyte, CV-based redox characterization, and potentiostatic methods for accurate faradaic efficiency quantification.
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Standardized EC-MS benchmark measurements for Pt-Poly and glassy carbon electrodes — CV and chronopotentiometry procedures covering HER, OER, and CO2 oxidation, with M2 signal decay half-lives (~3.8 s for Pt-Poly) for validating system cleanliness and performance.
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EC-MS Technical Note #3: how capacitive EC-cells cause potentiostat instability in CV measurements, and how to fix it with a series resistor and post-measurement iR compensation.
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EC-MS Technical Note #2: standardized cyclic voltammetry and chronopotentiometry benchmark measurements on Pt-Poly and GC electrodes, with expected M2 decay half-lives.
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Learn how to send Ar and He gas pulses through the EC-MS gas exchange system with minimal switching time. Covers the step-by-step MFC and valve sequence, plus expected switching times — roughly 20 seconds from He to Ar, and 50 seconds from Ar to He.
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A detailed troubleshooting guide for identifying and preventing MS signal fluctuations caused by bubbles — covering electrolyte injection defects, cell (re)mounting steps, pressure set-point tuning, and how to distinguish bubble-related M28/M32/M40 spikes from normal signals.
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EC-MS Technical Note #4: how non-aqueous chips perform in IPA, THF, and KOH — CV and chronopotentiometry comparisons against standard chips.
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This technical note explains soft ionization in EC-MS — operating at low electron energies (15–22 eV) to minimize fragmentation — and shows how it separates the NH₃ signal from water's overlapping OH⁺ fragment at m/z=17, plus step-by-step guidance for safely adjusting ionization parameters in PV MassSpec.
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A step-by-step guide to checking and configuring the external ion gauge interlock in PV MassSpec — recognizing the HPT200 gauge, setting the trip-high action at 5E-5 mbar, and calibrating the internal ion plate as part of standard maintenance.
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