Positive/Negative Analyte Ion Analysis/Introduction/Generation TRIZ Cases
- Hybrid ICP-MS Reaction Chamber for Dual-Polarity Molecular Analysis
A pressure-controlled reaction chamber lets one ICP-MS handle elemental and soft molecular ionization in both polarities, reducing multi-instrument workflows.
- Multi-Pressure Chemical Ionization for Broad Breath Compound Detection
Multiple pressure-stage chemical ionization expands breath analysis to polar and non-polar compounds while improving sensitivity and selectivity.
- Ultrasonic Nebulizer-APCI Inlet for Broad-Range Mass Spectrometry
Ultrasonic nebulization paired with APCI boosts ionization of polar and non-polar analytes, improving signal stability and sensitivity.
- Dual-Polarity Ion Detector With Shared Signal Switching
A switching circuit lets positive and negative ion multipliers share one signal path, cutting circuit scale while limiting noise.
- Dual-Analyzer Mass Spectrometry for Opposite-Polarity MS2 Scans
Two mass analyzers run in opposite polarities to avoid switching delays and capture more MS1/MS2 spectra in one chromatographic run.
- Dual-Mode Ion Detector With Fixed-Potential Conversion Electrodes
Fixed-potential conversion electrodes and entrance-electrode switching enable faster, simpler dual-polarity ion detection.
- Ion Mobility Filter Electrodes with Straight-Walled MEMS Channels
Mechanical dicing forms straight, high-aspect-ratio ion channels that avoid tapering and improve MEMS ion filter stability and transmission.
- Single-Particle Mass Spectroscopy with Dual REMPI-LDI Ionization
Dual-beam REMPI and LDI analyze detached components and residual cores together, preserving molecular and elemental data from single airborne particles.
- Hybrid Ion Source for Dual-Mode Mass Spectrometry Screening
A hybrid ESI and corona discharge ion source expands dual-mode ion detection for complex organic samples with minimal preparation.
- Bipolar Mass Analysis Chamber With Switchable Ion Gate
A switchable ion gate routes positive and negative ions into separate analysers in one chamber, improving ionisation flexibility and time resolution.
- Ion Detector with Offset Angled Detection Channels
Offset angled ion detection devices use independent voltage biases to direct positive and negative ions along orthogonal paths.
- Mass Spectrometer Dual Fluid Pathways for Coeluting Analyte Analysis
Dual fluid pathways direct sample portions to a mass spectrometer for simultaneous positive and negative ion analysis, cutting total time from 34 hours.
- Dual Ion Source Mass Spectrometer for Simultaneous Positive and Negative Ionization
A dual ion source system combines electron impact and trochoidal electron monochromator technologies to generate positive and negative ions simultaneously.