chemicals
chemicals


Author Comment Last activity Moderation
jhonbrandi "A lab chemical can include a reference standard, a laboratory reagent, etc. There is an extremely high value attached to these chemicals, and they ..." | Read more » over 1 year ago
mogenshelluk "Hi Dear! Using the USP as a starting point is a good idea. Depending on your needs, you can either choose NIST, primary standard, or other grades. ..." | Read more » over 1 year ago
Rehan "@Ag8n @Salman21 Thanks to both of you for your support. " | Read more » almost 2 years ago
liz "Hi @Rehan , the "we" refers to Public Lab contributors because we are an open source community. " | Read more » almost 2 years ago
Salman21 "Agreed with @Ag8n for the USP as a good starting point. Furthermore, ICH Q7 guidelines would be a great starting point as well. Read "How to Handle..." | Read more » almost 2 years ago
Rehan "@Ag8n Thank you for the information. No, I don't know yet which reagent will be used in the project. Anyway, what do mean by "we". " | Read more » almost 2 years ago
Ag8n "The USP is a good starting point. You have to choose between NIST, primary standard, and other grades. Do you know what reagents you will be using..." | Read more » almost 2 years ago
ituqq "I sometimes leave comments on blogs. I don’t do it for SEO purposes necessarily, but to learn new things. itu dewa " | Read more » over 5 years ago
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Ag8n "The air testing you did, that had something in it, but nothing that would hurt you. Are those reports available? And not just " no significant l..." | Read more » over 5 years ago
stevie "See SkyTruth Alerts that are reported for this area here: http://alerts.skytruth.org/subscribe?l=30.2602,-88.6521,30.4527,-88.4118#RSS There were ..." | Read more » over 5 years ago
stoft "The spectrum of most common halogen lamps is neither smooth nor flat and generally do not have published spectral data. You might consider the Solu..." | Read more » over 5 years ago
Ag8n "If you are trying a direct comparison ( apples to apples), see how the analytical lab is testing your samples. Probably, they will be using an adv..." | Read more » over 5 years ago
Ag8n "A couple of gottchas here. I think you want to use the lego spectrometer with a light source. The light source would be fed through a cuvette fil..." | Read more » over 5 years ago
warren "Would the birds be live? " | Read more » over 5 years ago
warren "Sure it can! In the visible range of light, and with some careful consistent lighting. Cool idea! " | Read more » over 5 years ago
warren "@ewilder and @hannahJG - I've moved this page over to https://publiclab.org/wiki/hydrogen-sulfide-photopaper -- and I really love the how-to guide!..." | Read more » about 6 years ago
warren "Also see this related question: https://publiclab.org/questions/shaikhgous/11-18-2016/identify-plastic-material-using-infrared-imaging " | Read more » over 6 years ago
jjoll "hello savargaz, thanks for the answer. what are your thoughts on distinguishing classes as large as all plastics. Will there be a unique spectral s..." | Read more » over 6 years ago
savargaz "You can most definitely use spectrometers to detect different types of materials. All materials are composed differently and thus will absorb and r..." | Read more » over 6 years ago