Delivering robustness and resilience

The problem:

Analytical labs chasing low limits of quantitation across complex matrices and high‑throughput workflows face a stubborn reality: as ion transmission rises, so does the possibility for contamination— potentially compromising signal fidelity, driving increased maintenance, and disrupting productivity just when instrument uptime matters most. Sensitivity is essential, but it’s only valuable when the system stays online.

Complex or “dirty” matrices send a broad population of ions through the front end of the mass spectrometer. Many of these high‑mass, non‑informative ions don’t contribute to analytical results, and yet they deposit charged debris on IQ1 or Q1 (orsometimes even further down the rail), causing sensitivity loss, mass shifts, unplanned cleaning, and downtime. This kind of unplanned downtime can be costly, both in terms of time and money.

The solution:

Mass Guard technology resolves this tension with innovative ion filtering technology that preserves both sensitivity and stability, helping labs maximize utilization even under heavy matrix load. First available on the SCIEX 7500+ system and now also on the SCIEX ZenoTOF 8600 system, this technology delivers low limits of quantitation and increased resilience- so customers gain longer, continuous run times, have more control over their instrument downtime, and see improved analytical consistency without sacrificing sensitivity or system performance.

Mass Guard technology prevents contamination-prone, non-informative ions from ever reaching IQ1/Q1, maintaining our highest sensitivity for up to twice as long and reducing the risk and frequency of instrument contamination. It is incorporated in Q0 and works by creating a high m/z cut-off above the target mass range, removing unwanted high m/z species, and narrowing the m/z range of ions transmitted past Q0.

How Mass Guard technology works:

Mass Guard technology is a proprietary innovation that filters out high m/z contaminants before they reach IQ1/Q1, using auxiliary electrodes with novel software control. Ions are transmitted within user-defined mass-to-charge (m/z) range while higher-mass ions that contribute to optical fouling and signalinstability are filtered out.

• Using auxiliary electrodes on the ion guide. These enable fast refilling for rapid switching, during which the instrument filters ions above the precursor mass of interest.

• Applying an asymmetrical DC potential difference between the two auxiliary electrodes. This reduces radial confinement of ions traveling through Q0, where the auxiliary electrodes are active and destabilize ion trajectories.

• Operating at a higher-pressure regime. This allows the region to be more resilient to debris accumulation than, for example, the Q1 region.

This unique dual-field configuration allows higher mass ions to be selectively filtered from the ion beam and directed to the auxiliary electrode surfaces, effectively removing them from the beam and preventing contamination of rail components beyond Q0. In this way, Mass Guard technology functions similarly to a guard column in liquid chromatography, protecting the Q1 region, where key selectivity occurs, from contamination.

In summary:

SCIEX triple quadrupoles have long been trusted for day‑to‑day robustness. Building on that heritage, we’re advancing instrument resilience to help scientists protect data quality, maximize uptime, and run more efficiently. Mass Guard technology elevates protection into performance— filtering out non‑essential ions so your instruments stay cleaner, longer.

And since it’s available on both the SCIEX 7500+ and ZenoTOF 8600 systems, that same resilience extends across both demanding quantitative studies and exploratory qualitative work. Now you can scale from the most rigorous quantitative methods to qualitative discoveries with more uptime and greater efficiency.

Key benefits of Mass Guard technology

Built into your go‑to systems: Available on the SCIEX 7500+ system and ZenoTOF 8600 system, so resilience is standard whether you’re running targeted quant or exploratory analyses
More uptime, fewer cleanings: In accelerated contamination studies across multiple matrices Mass Guard technology was shown to extend cleaning intervals by up to 2 times compared to current SCIEX technology, with debris redirected to the auxiliary electrodes instead of IQ1/Q1
Resilience at scale: Mass Guard technology enables stable protection under prolonged, dirty and complex matrix exposure so you can commit to bigger batches with confidence
Throughput preserved: The transmission window is automatically tuned per precursor (e.g., +100, +200, +400 Da above target) and with auxiliary electrodes that support rapid refill for fast transition switching, MassGuard technology runs on the MRM timescale you need to use
Practical, repeatable, and service‑friendly: The assembly is user-serviceable and uses easy-to-use alignment pins for repeatable placement, while a small corrective DC offset helps compensate for any minor misalignments to preserve transmission

Explore more below:

Transforming small molecule quantitative sensitivity with a novel quadrupole time-of-flight mass spectrometer

This technical note demonstrates a sensitive method for the quantitation of small-molecule drugs in extracted rat plasma using the ZenoTOF 8600 system.

Explore more

Quantitative performance of a next-generation, highly robust triple quadrupole mass spectrometer

In order to effectively meet the required drug discovery and development timelines, bioanalytical workflows need robust mass spectrometers to minimize instrument downtime.

Delivering robustness and resilience

The problem​:

The solution:

How Mass Guard technology works:

In summary​:

Key benefits of Mass Guard technology

Explore more below:

Ultimate quantitation

Catch up on past months topics

SCIEX Now support network

The destination for all your support needs.

The problem:

In summary: