What question did this study set out to answer?

Design, fabricate, and validate a sub-miniature double-focusing sector-field mass spectrometer for portable and cost-effective analytical instrumentation.

June 1, 2001Journal of the American Society for Mass Spectrometry

Sub-miniature ExB sector-field mass spectrometer

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Design, fabricate, and validate a sub-miniature double-focusing sector-field mass spectrometer for portable and cost-effective analytical instrumentation.
Fabricated a 90-degree cylindrical crossed electric and magnetic sector-field analyzer with a 2-cm radius using conventional machining and thin-film sensor patterning.
Optimized and verified ion beam dynamics using finite element analysis simulations and computational modeling before and during fabrication.
Achieved a resolving power of 106 full-width at half-maximum (FWHM), a detection limit near 10 parts per million, a dynamic range of 5 orders of magnitude, and a mass range up to 103 Da.
Built a complete instrument measuring 3.5 cm wide, 6 cm long, and 7.5 cm tall with a weight of 0.8 kg and power consumption of 2.5 W.
Demonstrated analytical performance comparable to commercial residual gas analyzers at a fraction of the cost.

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Implication

Instrumentation study demonstrates high resolving power and low power consumption in a sub-miniature spectrometer, indicating potential for low-cost portable gas analysis.

Cite This Study

Diaz et al. (2001) studied this question.

synapsesocial.com/papers/6a852f5822ea7ab258b2ea1e https://doi.org/10.1016/s1044-0305(01)00245-8

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Implication

Instrumentation study demonstrates high resolving power and low power consumption in a sub-miniature spectrometer, indicating potential for low-cost portable gas analysis.

Sub-miniature ExB sector-field mass spectrometer

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Discussion

Implication

Cite This Study

Sub-miniature ExB sector-field mass spectrometer

Key Points

Discussion

Implication

Cite This Study

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