Comments

Author Comment Last activity Moderation
homechemist "Anyway, tomorrow if I have time I am going to upload a new research note on chromatography that i think it will be really interesting for detecting..." | Read more » over 4 years ago
homechemist "Well, actually i cannot tell you exactly the concentration because i have prepared the solution roughly , but i think is more or less between 0,30..." | Read more » over 4 years ago
homechemist "The device is based on the public´s lab one, is one of the project that i posted time ago, the only thing that changes is the calibration(I used tw..." | Read more » over 4 years ago
homechemist "Interesting, it´s kind a Tyndall effect no?, but however i think that is not enough accurate to "select" an specific wavelength like an specific fi..." | Read more » over 5 years ago
homechemist "hcl is a strong acid but it won't work with cooper unless you add hydrogen peroxide, so i would recommend nitric acid for dissolve samples " | Read more » over 5 years ago
homechemist "okay great, it should be perfect for starting, i have read one of your projects ( element's identification) and i have been working on that for a t..." | Read more » over 5 years ago
homechemist "well, yeah that is absolutely true, red cabbage contents Anthocyanin which is a perfect universal indicator(in fact , I use it as ph indicator fo..." | Read more » over 5 years ago
homechemist "well , i suppose it should work but firstly we have to develop a color-based nitrate detection , we can try to use nitrate detection reagents for w..." | Read more » over 5 years ago
homechemist "Well , petroleum ether is a very common chemical is it use for dissolving paintings and for cleaning painting brushes, I am thinking that is possib..." | Read more » over 6 years ago
homechemist "Thank you very much , at first I have to said that this project wouldn’t be possible without your collaboration (Public Lab) And yes , at first yo..." | Read more » over 6 years ago