Public Lab Research note


Ernesto. Catching up.

by ernestootero | | 1,395 views | 1 comments |

Read more: publiclab.org/n/12332


A summary of activity. Openned Kit on 30 September 2015

20150930_102430.jpg

14 october 2015. Participated in Chat and had already put together the spectrometer side of the testing kit.

Found out that the wooden internal base and triangular base for the camera made difficult to close the lid. Used ruler inserted on the side to help close the the lid.

20151020_135222.jpg

Had to cut 1-2 mm of the tab towards the slit and opposite to the camera.

corte_de_2mm.jpg

21 October 2015 Tested the camera. Seems to be working fine. While trying to calibrate with a fluorescent bold found I difficult to stabilize spectrometer to maintain a stable spectrum before capture. Have to rig something to make stable readings. For calibration, something like some laboratory hands to grab the bulb close to the slit while keeping the camera on a stable surface.

(PNG_Image__640 × 150_pixels)_light_at_home.png

24 october 2015 Put together the laser and cuvette holder. It was not so easy. Maybe a sturdier type of carboar would make it less complicated. Similarly, the same mailing boxes could be used for mounting the camera and/or the laser. Used some tape to stabilize the base of the cuvette holder. (The tape is seen as a brighter strip). **

cuvette.jpg

The cuvettes I got are for spectrophotometry not for fluorometry. The clear faces are facing across the cuvette vs perpendicularly. Any suggestions?**

Brought some things to stabilize the light source..

stable_light_source.jpg

Identified some areas with visible oil spills in the streets close to the beach to use as unknown. I will search for additional sites tomorrow.


1 Comments

Hi, Ernesto - sorry, didn't see your question until now. There's a discussion of the ribbed cuvettes here: http://publiclab.org/notes/Cindy_ExCites/11-04-2015/oil-testing-kit-beta-programme-technical-adjustments-hack#c12858

If the ribbed side faces the spectrometer, they should be fine. What did you find?

Is this a question? Click here to post it to the Questions page.

Reply to this comment...


Login to comment.

Public Lab is open for anyone and will always be free. By signing up you'll join a diverse group of community researchers and tap into a lot of grassroots expertise.

Sign up