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Science & Method, The chemistry behind every green glow

The perovskite reaction, fluorescence spectroscopy, how FluoroSpec was developed, and why single-sample food tests create false certainty.

Science\u00a0&\u00a0Method
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Perovskite Chemistry
Fluorescence Spectroscopy
Trace Lead Detection
Origin Story
Single-Particle Dust
Single-Sample Methodology
Trace-Detection Disclosure
What Disclosure Does
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Science & Method
  Perovskite Chemistry
CH₃NH₃PbBr₃, how MABr + Pb²⁺ produces bright green quantum-dot fluorescence.
  Fluorescence Spectroscopy
Why fluorescence beats colorimetric swabs. Signal-to-noise, no false positives.
   Trace Lead Detection
AAS, ICP-OES, ICP-MS, XRF vs. fluorescence, the methods comparison.
   Origin Story
Eric\u2019s path, LOD collaboration, Dr. van Geen at Columbia, building FluoroSpec independently.
   Single-Particle Dust
Detection of lead-based paint dust at the single-particle level.
   Single-Sample Methodology
Why one ICP-MS result on a jar of cream cheese isn\u2019t a verdict.
   Trace-Detection Disclosure
FluoroSpec\u2019s public disclosure filing.
   What Disclosure Does
Why publishing chemistry matters more than patenting it.
Other sub-hubs
Food & Diet Home & Paint Dishes & Housewares Health & Body Contractors & Pros Policy & Society Competitive & Market

i made these. they are free.

six tools my family uses to keep our kid under the fda action threshold. type your email. you get all six on this page in two seconds.

  1. 1. Baby-Proof Lead Risk Calculatoran 8-question read of your house. returns a risk band you can defend to a pediatrician.
  2. 2. Blood Lead Calculator1,370 foods scored by purity labs with icp-ms. type what your kid ate this week, get µg/day vs the fda irl.
  3. 3. Baby Food Database18,000 lots, updated daily. search by brand, ingredient, lot.
  4. 4. Baby Bottle Review Sheetevery bottle on the market scored on lead and the substances that show up next to it.
  5. 5. Leaducational Pages2,165 dishes scanned with a niton xl5 plus, sorted by brand and pattern.
  6. 6. Lead Framework Book106 pages. learn, examine, abate, detox, live. the parent protocol that runs the whole house.

no spam. one short email every few days. leave any day you want, one click. by email i mean a parable and one thing to try, not a corporate newsletter.

here you go. six things, one tab each.

i copied your email to the list. the first email lands in a couple minutes. open the pack below now.

  1. 1. Baby-Proof Lead Risk Calculatoran 8-question read of your house and a band you can defend to a pediatrician.open →
  2. 2. Blood Lead Calculator1,370 foods scored by purity labs with icp-ms.open →
  3. 3. Baby Food Database18,000 lots. search by brand, ingredient, lot.open →
  4. 4. Baby Bottle Review Sheetevery bottle on the market scored on lead.open →
  5. 5. Leaducational Pages2,165 dishes scanned with a niton xl5 plus.open →
  6. 6. Lead Framework Book106 pages. learn, examine, abate, detox, live.open →

bookmark this page. the database and the leaducational pages update almost every day. the bottle sheet and the dish list grow as the lab finishes new runs.

or, if you want, grab a kit.

the information is free. the kit is for parents who, after reading the framework, decide they want to walk around the nursery with a drop bottle tonight. one drop of fluoro-spec on the painted side of a plate. if it's lead, it glows green in seconds. no lab.

see the drip kit, $50 →