toys
toys


Author Comment Last activity Moderation
bhamster "Thanks for this vital information @Ag8n! " | Read more » almost 3 years ago
Ag8n "The nir instruments are heavily used in agriculture. The company I worked for wanted to use Near Infra-Red (reflectance), also called NIRR, to dete..." | Read more » almost 3 years ago
Ironman "Thanks for all your answers and help. But solving all kind of plastics or swapping them with iron (III) chloride and having a high chance of false ..." | Read more » almost 3 years ago
Ag8n "Please go to the web page mentioned. You will see that this test works by reacting the extract with iron (III) chloride. Many other materials wil..." | Read more » almost 3 years ago
bhamster "There are some potential leads in this Twitter thread (screenshot below) Thanks @liz and @sara for these! " | Read more » almost 3 years ago
Ag8n "A better approach would be Uv/ vis. Phenols, such as BPA, absorb at about 280 nm. So you would set up an extraction to pull out the BPA and run a..." | Read more » almost 3 years ago