Reagents are a type of chemical which react to a specific compound, typically changing color or opacity when that compound is present. Usually, you add a few drops of a reactive chemical into a container of your sample, and look for a color change. Some reagents are dried onto flat strips or put inside glass tubes (for air testing). ## Questions [questions:reagents] ## Activities Reagents are a really broad category, but some techniques related to them may be usable for various target chemicals. [activities:reagents] **** ## Additional work [notes:reagents]...
| 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 » | almost 2 years 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 » | about 2 years ago | |||
| Rehan | "@Ag8n @Salman21 Thanks to both of you for your support. " | Read more » | over 2 years ago | |||
| liz | "Hi @Rehan , the "we" refers to Public Lab contributors because we are an open source community. " | Read more » | over 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 » | over 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 » | over 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 » | over 2 years ago | |||
| Ag8n | "You have to be careful on how different methods work. The answers can vary dramatically from method to method. For example, if atomic absorption(..." | Read more » | almost 4 years ago | |||
| Engineerjaykumar | "The soil testing is done in different ways such as: -Surface exploration -subsurface exploration But for mining work a very sensitive and complex m..." | Read more » | over 4 years ago | |||
| DanielleS | " Thanks @Ag8n !! Do you want to join us to brainstorm about soil testing methods for contaminants at the OpenHour: Date: Monday, April 1st Time: 6..." | Read more » | over 5 years ago | |||
| evabeauty | " chirurgie esthétique tunisie chirurgie esthetique en tunisie chirurgie esthétique tunisie chirurgien esthétique Prix chirurgie esthétique en tunis..." | Read more » | over 5 years ago | |||
| Ag8n | " On pcbs (it's the chlorine part I 'm worried about, here), whenever you put a chlorine containing material in a flame, the flame should turn green..." | Read more » | over 5 years ago | |||
| warren | " Thanks @DanielleS! I added tags benzene,toluene,ethylbenzene,xylene and activity:soil and others to help connect this up with other pages. :tada: " | Read more » | over 5 years ago | |||
| Ag8n | " From a quick look, it seems that PAHs and PNAs (polynuclear aromatic hydrocarbons) are the same thing. We did PNA analysis on carbon black that w..." | Read more » | over 5 years ago | |||
| Ag8n | " The kits for these tests ( someone correct me if I'm wrong) appear to be made by RenekaBio. A quick look down the test procedure and method showe..." | Read more » | almost 6 years ago | |||
| bararesbest | " What is the solution 2? " | Read more » | almost 6 years ago | |||
| stevie | "Yes! here's the report back on the event https://publiclab.org/notes/Delaney/05-04-2018/water-quality-testing-at-turkey-creek " | Read more » | about 6 years ago | |||
| belkinsa | "Is the report ready? " | Read more » | about 6 years ago | |||
| Aleksi12358 | "What contaminants exactly you are talking about? There is photometer reagents for many different chemicals. For example this shop has many differen..." | Read more » | over 6 years ago | |||
| briandegger | "Great article. Its also good to know about Renekabio(based in US and Indonesia ftw) and their set of assays. Is this the detection kit you used? h..." | Read more » | over 6 years ago | |||
| warren | "Related: How can we detect contaminants in water samples with a DIY spectrometer using reagents? https://publiclab.org/notes/warren/12-18-2017/ca..." | Read more » | almost 7 years ago | |||
| warren | "OK, my next thought on this would be to scan 2 at once instead of 3, so that at least any non-evenness would be symmetric horizontally. But I'm not..." | Read more » | almost 7 years ago | |||
| programmer1200 | "Hi Warren I'm also working on a beers law based machine for testing one cuvette at a time and measuring the amount of light penetrating through the..." | Read more » | almost 7 years ago | |||
| warren | "I think the light is not evenly distributed, and in the scan I took, there's just more light in the middle. I'd like to correct for this but it's e..." | Read more » | almost 7 years ago |