Posts
- Overview “Known Unknowns”
- My New 2026 Model S Plaid
- Software Bugs in NIST26
- Public Copyright License CC BY 4.0
- Overview: Identification of Illicit Drugs
- Wiley and Specialty Libraries with NIST26 Search
- Overview of Known Unknown Identifications with Accurate Mass Data
- Using SPME to Identify Compounds by EI GC-MS
- NIST26 Accurate Mass LC-MS/MS: Basic Introductory Course
- NIST26 Advanced Course EI GC/MS Identification of Unknowns
- NIST26 Advanced Course LC-MS/MS Identifications of Unknowns
- V4.0 of NIST EI Search (2026 old)
- Advanced Course V4.0 of NIST MS/MS Search (2026)
- Accurate Mass Measurements: Identifying “Known Unknowns” US EPA’s CompTox Chemistry Dashboard
- 2 Over 1 Bridge Lessons
- Wiley KnowItAll LC Expert for MS/MS Data Processing
- Using Thermo Freestyle to Perform NIST MSMS Search
- EI and MS/MS Data Files
- Eastman Chemical Company Info
- Using Agilent MassHunter to Perform NIST MSMS Search
- ALL Talks at FORENSIC@NIST 2022 Workshop on Seized Drug Analyses
- Unknown White Powder Identified by Wiley KnowItAll Searches
- Morning Winds on Watauga Lake
- Marine Electrical Systems Resource
- Agilent Denconvolution Reporting Software (DRS)
- NIST23 Library and Software Release in Early June
- Conserving Helium in GCMS and GC Applications
- EI and MS/MS Libraries in NIST Format Plus Other Resources
- NIST26 EI GC-MS: Basic Introductory Course
- NIST2026 V4.0 Library and Software Available in Early June
- FREE Chemical Drawing Programs
- Unknown Identification Presentation at Current Trends in Seized Drugs Analysis Symposium
- ALL Talks at FORENSIC@NIST 2022 Workshop on Seized Drug Analyses
- Part VI: Creating and Using Retention Indices in NIST Software
- Approach for Unknown Identifications Presented at Forensic@NIST2022 Workshop on Seized Drug Analyses
- Wiley KnowItAll Mass Spec Training
- NIST Hybrid Search Example: Identification of PCP Related Unknown
- Wiley KnowItAll Software for Unknown Identifications
- Identifying Unknowns with Google Molecular Formula Search and Image/Structures Display
- Chemical Ionization GC-MS Substituting Liquid Reagents for Gasses
- Helium Conservation in GCMS, GC, and DART Applications
- Two Holder 20’s For Sale and Associated Equipment and Advanced “Sailbot” Race Starting Horn
- ACS Spring 2021 Presentation: Identification of Unknowns by GC-MS and LC-MS with NIST Search in Industrial Applications
- NIST MS Interpreter
- Bread Recipes from Betty Ottenfeld
- Buying NIST “20” EI and Tandem (MSMS) Libraries
- NIST20,23,26 Advanced Course LC-MS/MS Identification of Unknowns
- Six Free Courses: Identifying Unknowns Using LCMS and GCMS NIST Library Search
- Differences in EI and Tandem Orbitrap Spectra versus Standard Quadrupole and TOF Spectra
- Novel NIST Hybrid Search for Unknown Identifications
- Agilent Deconvolution Reporting Software (DRS)
- Downloads of NIST Software/Libraries/Tools
- NIST’s Tutorials and Suggested Settings for AMDIS Filters
- Wiley/NIST Webinar: Example MS Data Files and Spectra
- Mass Spec Training from David Sparkman
- Wiley/NIST Webinar YouTube Channel
- NIST User Manuals and Their Approaches for Creating EI and Tandem Libraries
- NIST20,23,26 Advanced Course of NIST EI Search Identification of Unknowns
- Holder 20 For Sale
- Importance of Mass Spectral Search to Chemical Manufacturers: ASMS 2020 Workshop Presentation
- Tesla Cars and MassMan Vanity Plate
- Useful Tips for 1D and 2D NMR Experiments
- Archives of Old Articles and Mass Spec Documentation
- Accurate Mass User Libraries in NIST14 Release
- Interconversion of Quadricyclane and Quadricyclene: University of Georgia Graduate Work 1978
- File Conversions and Data Intechange
- “Known Unknown” Future Improvements Needed
- Identifying “Unknown Unknowns”
- CID (MS/MS) Libraries
- In Silico MS Fragmentation Data
- Pittcon 2012: Overview of “Known Unknown” Identification
- Using NIST Search Program with Vendors’ Programs
- Using New NIST Exact Mass Search to Identify “Known Unknowns”
- Accurate Mass Measurements: Identifying “Known Unknowns” Using ChemSpider
- Dead-time Correction Limitations on Time-of-flight Mass Spectrometers
- NIST Search of EI and MS/MS Databases at Eastman Chemical Company
- List of My Publications, Patents, and ASMS Posters
- Matrix Effects in LC-MS: Simple Way to Monitor
- Preparation of polyester samples for composition analysis
- Sailing Away on TVA and Atlantic Ocean
- Identification of Surfactants in Commercial Products by Mass Spectrometry
- Methyl Ester Derivatives for GC-MS: Easy Room Temperature Dilute and Shoot Sample Preparation Using Hexane Solution of Trimethylsilyldiazomethane
- Identification of Silylation Artifacts in Derivatization Reactions
- Unknown Identification, “Known Unknowns,” with Accurate Mass Mass Spectrometry and CAS Registry
- Chemical Ionization Reagent Selection and Manifold Construction
- Searching TSCA for “Known Unknowns”
- Unusual Doubly Charged Ion in EI Spectrum of Phosphate
- Magnetic Accurate Mass Data vs. TOF Data

