| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| thangvu | "I have no solution for multi-wavelength source like a spectrometer. I will try with another wavelength. " | Read more » | over 6 years ago | |||
| thangvu | "Thanks for your answer, I have the standard solution of 5-10-20..70 pt / cb (I borrowed), according to the standard method, when measured at 430nm,..." | Read more » | over 6 years ago | |||
| thangvu | "My idea is to use a 430nm wavelength to measure the color of the water, so, I use a 430nm (+ - 10nm) led as the source, but the 430nm led seems to ..." | Read more » | over 6 years ago | |||
| thangvu | "sorry for saying it is unclear, with wastewater, the color of the water partly assesses the level of water pollution. " | Read more » | over 6 years ago | |||
| thangvu | "Thanks for your helpful answers " | Read more » | almost 7 years ago |