Notes tagged with spectrometer

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Clips for the next spectrometer

by mathew | 2 days ago | 4 | 172 views | 1

What I want to do find and test a clip that works with the bench design @warren and I brainstorm...

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Ultra micro cuvette tests, UV LED and low-temperature fluorescence

by warren | 3 days ago | 1 | 105 views | 0

What I want to do Just posting a variety of small tests I've done over the past few days, based ...

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Continued literature review for the Oil Testing Kit

by warren | 8 days ago | 4 | 201 views | 1

What I want to do I've been reading and annotating a collection of formal research papers on flu...

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Sample container search

by warren | 8 days ago | 10 | 152 views | 0

What I want to do The square glass bottles we've used for fluorescence spectroscopy are sold out...

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Increasing brightness of fluorescence spectra

by warren | 9 days ago | 7 | 157 views | 0

What I want to do We had some trouble at the recent oil testing kit meetup in New Orleans in get...

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Working Oil Testing Event Guide

by stevie | 9 days ago | 2 | 223 views | 1

This post is a working document on the developing Oil Testing Kit Event Guide. I expect it to cha...

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Survey of different kinds of fluorescence spectrometry, optimizing intensity

by warren | 11 days ago | 13 | 543 views | 1

Jargon Learning more about different types of fluorescence spectroscopy -- a common type for oil...

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Visible-range fluorescence fingerprinting of heating and motor oil

by warren | 11 days ago | 1 | 211 views | 1

I forwarded this 1992 article, "Fingerprinting petroleum contamination using synchronous scanning...

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Homemade Colorimeter (determine the concentration of a sample)

by homechemist | 18 days ago | 10 | 429 views | 2

What i want to do? The aim of this project is to develop a simple but accurate gadget for the de...

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State of the Science: The Oil Testing Kit

by mathew | 19 days ago | 1 | 402 views | 2

What we want to do I sat down with @warren to record a video presentation on the state of the oi...

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Karen's comments on the spectrometer instructions

by mathew | 21 days ago | 1 | 243 views | 0

Karen assembled a desktop spectrometer and commented the instructions during our 7/31 workshop.

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Hardware design work for the Oil Testing Kit

by mathew | 21 days ago | 13 | 268 views | 1

A hardware sketch of our favorite configuration is above. _This is a jointly authored research no...

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Recap: July 31 New Orleans oil testing meetup

by stevie | 21 days ago | 24 | 289 views | 3

Last night we held a meetup (organized by Stevie) to work on the emerging Oil Testing Kit with fo...

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Equalizing area of spectral graphs for comparison

by warren | 23 days ago | 0 | 231 views | 2

What I want to do During the development of testing techniques with spectrometers in the Public ...

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Spec Cam to Infragram w/the flip of filter? (Rosco "Fire" #19)

by Natalie | 24 days ago | 16 | 470 views | 0

What I want to do I would like to see if the "low-cost" webcam we are using currently for our De...

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Accuracy of assembled Desktop Spectrometry kit?

by WhiteRabbit | 25 days ago | 7 | 227 views | 1

How accurate are the data plots produced by the Desktop Spectrometer Kit?

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Spectrometer on a chip

by WhiteRabbit | 27 days ago | 2 | 285 views | 1

I ran across this all-in-one chip while I was just now looking into filter wheels, and I thought ...

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Detection of Added Sugar in Red Wine Using Visual Light Spectroscopy

by ygzstc | about 1 month ago | 12 | 725 views | 6

Introduction Naturally occurring sugar is the sugar found in whole, unprocessed foods, such as m...

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A Retrospective of Spectrometer Design Ideas 2011-2014

by mathew | about 1 month ago | 0 | 541 views | 0

Here is a history of public lab spectrometer research ideas up to the present. There is really n...

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A New Orleans Event

by stevie | about 1 month ago | 4 | 633 views | 1

Join us for an evening of exploring spectrometry! Could you identify a substance just by looking...

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Spectrometer slit width thoughts

by warren | about 1 month ago | 5 | 519 views | 0

What I want to do I'd like to propose a couple changes to the optical slit based on observations...

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Oil testing spectrometry workshop at Fab 10

by warren | about 1 month ago | 5 | 667 views | 1

I ran a small session on developing the oil test kit spectrometer yesterday in Barcelona (http://...

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Team Orca resurrected --Gulf Monitoring Consortium test for BP tar

by eustatic | about 1 month ago | 5 | 600 views | 2

Draft Reflections on the Alpha Oil Testing Kit [to be continued] Team Orca has rolled over. E...

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[GMC] [reference] on the need to monitor for Persistant Dispersant chemicals

by eustatic | about 1 month ago | 2 | 639 views | 1

Industry and US Government may be wrong on dispersant Corexit http://publiclab.org/notes/eustati...

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Troubleshooting: White light instead of emission spectra

by lionheadrex | 2 months ago | 7 | 301 views | 0

What I want to do Fix my spectrometer (I only see a white light instead of an emission spectra) ...

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Question: any low light settings for web cam used in desktop spectrometry kit?

by Henry0815 | 2 months ago | 5 | 1,149 views | 3

I wanted to measure fluophore response to excitation with the supplied laser diode pen. The fluop...

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Questions about DIY spectrometer and e-liquid ingredients

by nickha | 3 months ago | 2 | 697 views | 3

What I want to do I would like to know if the DIY spectrometer is capable of giving me an idea o...

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PLab's WebCam (Non)Linearity

by stoft | 3 months ago | 0 | 909 views | 2

We all know that when looking at the spectrometer's color band, and the associated spectral respo...

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Echo Hack 2014

by chrisjob | 3 months ago | 0 | 839 views | 0

I calibrated and tested a DIY made spectrometer I used a florescent light bulb to calibrate my s...

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Detection of Olive Oil Adulteration (with Peanut Oil) Using Visual Light Spectroscopy

by ygzstc | 4 months ago | 8 | 3,432 views | 4

Introduction Food fraud, especially “Economically Motivated Adulteration (EMA)” of food and food...

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