| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Aanalyst (a model of atomic absorption spectrometer that we had)hollow cathode lamps new are running for about $350. So when there are hollow cat..." | Read more » | over 2 years ago | |||
| Ag8n | "That looks like a hollow cathode lamp. But there are other kinds. It should have the element on the base plus usually the operating current range..." | Read more » | over 2 years ago | |||
| warren | "https://www.sciencedirect.com/science/article/abs/pii/0039914070800819 " | Read more » | over 2 years ago | |||
| warren | "Interesting. It's like a high power version of this? https://www.ebay.com/itm/324819370181 Does this take high voltage to run? " | Read more » | over 2 years ago | |||
| Ag8n | "I worked a lot on lead with atomic aborpion(AA) and related techniques. The two lead lines we normally used were 283 nm and 214 nm. Of course, the..." | Read more » | over 2 years ago | |||
| Ag8n | "The first article from" research gate "is a little more interesting. It has lead forming something similar to chelates. The summary of the articl..." | Read more » | over 2 years ago | |||
| Ag8n | "The last paper mentioned above is(I think) using chemiluminesence to generate the light(Flouescent detection of lead in... ByYan- Shiuan Wu, Et a..." | Read more » | over 2 years ago | |||
| lebensbaum | "great content, really love it best places to visit in Pakistan " | Read more » | over 2 years ago | |||
| lebensbaum | "great one best places to visit in Pakistan best places for honeymoon best places to visit in dubai best places to visit baum " | Read more » | over 2 years ago | |||
| Ag8n | "And that's just going down a few of the paths the Dr. Has suggested. The other testing discussed will be expensive also. While the testing is pro..." | Read more » | over 2 years ago | |||
| Ag8n | "Very interesting video. I don't know what the instruments cost is now. In the late 90s, a microscope FTIR, with ATR and libraries for analysis of..." | Read more » | over 2 years ago | |||
| TheChessGym | "TheChessGym is Mr. Phillips who teaches the 3rd block Environmental Science class at the STEM MAGNET PROGRAM of St. John the Baptist Parish School ..." | Read more » | almost 3 years ago | |||
| alahmiyah | "https://alalmiyah.com " | Read more » | almost 3 years ago | |||
| Ag8n | "The data shows that natural titration indicators with long shelf life (90 days) do exist ( see the Hippeastrum note above). However, Red cabbage d..." | Read more » | almost 3 years ago | |||
| Ag8n | "The research shows that natural titration indicators, with good shelf life, do exist ( see Hippeastrum, above). However, Red cabbage does not appe..." | Read more » | almost 3 years ago | |||
| stevie | "wow! shocking video. Great resource though. I'm tagging it to the blog. For those who see it from there, check out more on the project at www.publi..." | Read more » | almost 3 years ago | |||
| Ag8n | "The acid (from the pH 3 solution ) for the cabbage indicator could mess up some titrations. A blank might need run(and, depending on the titration..." | Read more » | almost 3 years ago | |||
| Ag8n | "Clarification. Acidic media is pH 3. " | Read more » | almost 3 years ago | |||
| Ag8n | "Check this reference: "Evaluation of red cabbage dye as a potential natural color for pharmaceutical use" by Neela Chigurupati, et. al. Industrial..." | Read more » | almost 3 years ago | |||
| Ag8n | "Some natural indicators can have shelf lives of up to 90 days in solution. See "Hippeastrum hybridum anthrocyanin indicators of acid - base titrat..." | Read more » | almost 3 years ago | |||
| Ag8n | "Interesting paper on this same subject. " Application of Butterfly Pea extract as an indicator of acid - base titrations " by Nyi Mekar Saptarini ..." | Read more » | almost 3 years ago | |||
| bhamster | "You might've already looked here, but maybe Canada's National Pollutant Release Inventory? Tagging in others who might know about this @id022012, ..." | Read more » | almost 3 years ago | |||
| hunternick363 | "This is a nice and simple method of measuring the PH of a solution. I remember these kinds of experiments we used to do in science class. We have t..." | Read more » | almost 3 years ago | |||
| stevejohnson | "thanks for the information " | Read more » | almost 3 years ago |