CO-CIMS

This page documents the Colorado Front Range ToF-CIMS & Related Techniques Users Meetings, started in Feb. 2017.

Next Meetings

We are planning on a 1/2 day meetings every year or so.
The 2nd meeting will take place 24-Jan-2018, 1-5:30 pm, Ekeley S274 at CU-Boulder.
The meeting format and frequency may evolve in the future, depending on the interests of the participants.

This meeting took place at CU on 24 Jan 2018.
The schedule is here
Introduction
- Jose L. Jimenez: Intro, format, and any related discussions about this meeting
- Harald Stark: Update on annual Aerodyne ToF-CIMS and other users meetings
Advances in Instrumentation & software
- Joost de Gouw: VOCUS PTR
- Mike Cubison: Overview of the Tofware v3.0 data analysis software
Sensitivity & Calibrations
- Patrick Veres: IMR Pressure Regime Decisions, Consequences, and Things to Think About
- Andy Neuman: IMR pressure gauge accuracy can affect sensitivity
- Michael Link: IMR pressure dependent calibrations: potential importance of reagent ion chemistry
- Michael Link: CIMS calibration intercomparison: How to compare instrument response between different instruments?
- Harald Stark: Determining relative transmission factors for CIMS
Background signals and related topics
- Demetrios Pagonis + Benjamin Demming: Gas-wall partitioning in sampling lines and instrument surfaces
- Demetrios Pagonis: Demonstration of tubing gas-wall partitioning Igor model software
- Michael Link: Fast vs slow zeros and understanding limits of detection
- Ryan Fulgham: Long-term sensitivity and background of acetate ToF-CIMS
PMF
- Derek Price: PMF of CIMS data
- Harald Stark: PMF Errors for CIMS
- Aroob Abdelhamid: PMF and error calculation for APi-ToF
Applications
- Matt Coggon: Methods for determining molecular functionality at the FIREX Fire lab

Introduction
- Jose L. Jimenez: Intro, format, and any related discussions about this meeting
- Harald Stark Update on annual Aerodyne ToF-CIMS and other users meetings
High-Resolution Peak Fitting Issues
- Andy Neuman: Reasons for embracing negative peaks. I'll show examples of bias introduced by not allowing negative peaks, and discuss how to best measure compounds with mixing ratios that often approach zero
- Ryan Fulgham: Harald's tools for peak fitting by functional group (no presentation)
- Harald Stark: Data analysis Q&A (no presentation)
Background signals and related topics
- Matt Coggon: Post-Tofware Data Processing - Background Correction Procedures
- Demetrios Pagonis: Tubing delay analysis
- Ellie Browne: discussion on reducing backgrounds (no presentation)
Calibrations
Applications