Publications

Application Notes

• RA_2010A_Practical_Quadrupole_Theory_Graphical_Theory.pdfPDF
• RA_2011A_Practical_Quadrupole_Theory_2005_01_25.pdfPDF
• RA_2012B_Practical_Quadrupole_Theory_Emittance.pdfPDF
• TN_3004B_Practical Quadrupole Theory_Quadrupole Acceptance_2009_07_01.pdfPDF
• TN_3006A_Practical Quadrupole Theory_2009_07_01.pdfPDF
• TN_3007A_Practical Quadrupole Theory Ion Guides.pdfPDF
• TN_3008_Practical Quadrupole Theory RF Frequency.pdfPDF

Presentations

• Ardara_ASMS_2023_Corporate_Poster.pdfPDF
• Ardara_ASMS_2024_Digital_Waveform_Quads.pdfPDF
• Ardara_ASMS_2024_Ion_Guides.pdfPDF
• Ardara_ASMS_2025_SID_Energetics.pdfPDF

1. Cismesia, A. P.; Tesler, L. F.; Bell, M. R.; Bailey, L. S.; Polfer, N. C. Infrared Ion Spectroscopy inside a Mass-Selective Cryogenic 2D Linear Ion Trap. J. Mass Spectrom. 2017. https://doi.org/10.1002/jms.3975.

   Ardara mention (Methods): quadrupole mass filter (QMF) (Ardara Technologies, Monroeville, PA).

2. Cismesia, A. P.; Tesler, L. F.; Bell, M. R.; Bailey, L. S.; Polfer, N. C. Operation and Performance of a Mass-Selective Cryogenic Linear Ion Trap. J. Am. Soc. Mass Spectrom. 2018. https://doi.org/10.1007/s13361-018-2026-7.

   Ardara mention (Methods): quadrupole mass filter (QMF) (Ardara Technologies L.P., Ardara, PA).

3. Authors listed on journal page (RSC Publishing). Excited-State Chemistry of the Nitromethane Anion Mediated by the Dipole-Bound States Revealed by Photofragment Action Spectroscopy. Chem. Sci. 2023. https://doi.org/10.1039/D3SC04342H.

   Ardara mention (Methods): RF quadrupole mass filter (Ardara Technologies) for initial mass selection.

4. Shaw, J. B.; Harvey, S. R.; Du, C.; Xu, Z.; et al. Protein Complex Heterogeneity and Topology Revealed by Electron Capture Charge Reduction and Surface Induced Dissociation. ACS Cent. Sci. 2024. https://doi.org/10.1021/acscentsci.4c00461.

   Ardara mention (Methods): C-Trap DC offset and SID voltages supplied via external power supplies (Ardara Technologies) and controlled by Tempus software (Ardara Technologies).

5. Gundlach-Graham, A. Experimental Investigation of a Digital Quadrupole Inductively Coupled Plasma Mass Spectrometer for Elemental Analysis. J. Am. Soc. Mass Spectrom. 2024. https://doi.org/10.1021/jasms.4c00167.

   Ardara mention (Methods): RF applied with an external power supply (Model PSRF-100, Ardara Technologies).

6. Eckhoff, C. C.; Lubinsky, N. K.; Metzler, L. J.; Pedder, R. E.; Velásquez-García, L. F. Low-Cost, Compact Quadrupole Mass Filters with Unity Mass Resolution via Ceramic Resin Vat Photopolymerization. Adv. Sci. 2024. https://doi.org/10.1002/advs.202307665.

   Ardara mention (affiliation): Metzler and Pedder listed with Ardara Technologies L.P.

7. Avadhani, V. S.; Pedder, R. E.; Metzler, L. J.; Williams, E. R. Atmospheric Sampling Mass Spectrometers Activate and Ionize Neutral Water Microdroplets to MeV Energies and up to 200,000+ Charges: Implications for Water Stability and Unusual Chemistry in Microdroplets. ACS Cent. Sci. 2025. https://doi.org/10.1021/acscentsci.5c01518.

   Ardara mention (affiliation/COI): Pedder and Metzler listed with Ardara Technologies LP; COI notes they commercially produce some components used.