Some links and info about spectrophotometers on hackteria wiki
![](/sites/default/files/styles/imagenes_grandes/public/default_images/defecto_0_5.jpg?itok=9WTQWNnR)
we have collected random information on spectrophotometers, colorimeters, turbiditymeters... which in the end is all the same concept of using light and it's interactions with matter/molecules for analytical purposes.
start here, mostly about spectroscopy: http://hackteria.org/wiki/DIY_spectroscopy
and more here, even simpler approaches on light absorbtion: http://hackteria.org/wiki/DIY_turbidity_meters
and specific info on the most simple LED -LDR absorbtion setup used for colorimetric tests: http://hackteria.org/wiki/SATW-DIY
i got some other tests with me. not estrogens but nitrogens, but maybe we can get our hands wet by doing a mini-workshop with that test-kit, to get some more intuitive feeling about what sensing stuff in water samples generally could look like: http://hackteria.org/wiki/Plant_Analysis#Quick_Nitrate-N_Tests
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