| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "The conductivity cell should take the place of Rx. So disconnect the conductivity cell, disconnect Rx, leave the one of the conductivity cell conn..." | Read more » | about 1 year ago | |||
| Ag8n | "Further note-EC is electrical conductivity " | Read more » | about 1 year ago | |||
| Ag8n | "Especially in mixtures, not all soluble solids are conductive. So yes, you can dissolve (or sometimes suspend) something inert in water. We would..." | Read more » | about 1 year ago | |||
| Ag8n | "Look up conductivity cell and wheatstone bridge Instead of feeding DC into the weatstone bridge, the audio signal is fed in. One leg of the wheats..." | Read more » | about 1 year ago | |||
| Ag8n | "It looks like the Coqui is a pretty well designed instrument. But, some of the pharmaceutical instruments would send the tone through a bridge. T..." | Read more » | about 1 year ago | |||
| Ag8n | "In this area of Ohio many municipalities use water wells to serve the local cities. As the demand for the municipal water increases, private wells..." | Read more » | about 1 year ago | |||
| Ag8n | "Check out " Turning off the plastic" by Patrick Walter. It's a good read. He has an editorial in the 30 March 2022 edition of Chem World. He m..." | Read more » | about 1 year 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 » | about 1 year ago | |||
| Ag8n | "Has Medtronic been approached about this? That should probably be the first approach. As far as the rest of it goes... We made catheters, heart a..." | Read more » | about 1 year ago | |||
| Ag8n | "To quote you "Studies show that the only plausible solution is to start by reducing the production and use plastics period." Interesting. Please g..." | Read more » | about 1 year ago | |||
| Ag8n | "The last heard, Ohio decided it was excessive levels of fertilizers that caused the problem. So, the solution was to limit when fertilizers could ..." | Read more » | about 1 year ago | |||
| Ag8n | "Just to make sure you understand. i think the amount of waste is much higher than what is listed. Proving it? That will be very difficult. " | Read more » | about 1 year ago | |||
| Ag8n | "I'd like to compliment you. That is a very nice lab. Any oil spill that can be stopped (such as the gulf oil spills), should be. From working in..." | Read more » | about 1 year ago | |||
| Ag8n | "Believe it or not, during the seaon, this is on the weather segment of the local news. The local water intakes (Cleveland) are often threatened by..." | Read more » | about 1 year ago | |||
| Ag8n | "I need to give further explanation. I'm recovering from cancer, now. Without the polymer based medical devices giving the nasty chemicals, that w..." | Read more » | about 1 year ago | |||
| Ag8n | "How will the general public be convinced? Right now, there are many plastic plants in the US employing thousands of people. That is before We menti..." | Read more » | about 1 year ago | |||
| Ag8n | "The results you were given aren't "top of the line". To be honest, the book keeping is kind of shoddy. Normally, there would be reference to the t..." | Read more » | about 1 year ago | |||
| Ag8n | "We also used graphite furnace AA, also called GFAA. One common analytical instrument is ICP (inductively coupled plasma). I've used them a couple..." | Read more » | about 1 year ago | |||
| Ag8n | "Another reference. "Some recent developments in atomic fluorescence spectrosopy" by T.S.West Analytical Chemistry, ( presented at 26 th internati..." | Read more » | about 1 year ago | |||
| Ag8n | "Here are a couple of reference: "Studies in atomic fluorescence spectroscopy -III:microwave excited electrodeless discharge tubes as spectral sour..." | Read more » | about 1 year ago | |||
| Ag8n | "You know, getting a couple of these that could be "disposable" might not be a bad idea. Working with 400 volts isn't a terribly high voltage, but ..." | Read more » | about 1 year ago | |||
| Ag8n | "That looks like a hollow cathode lamp. We used perkin elmer, not fisher, so there could be differences. The lamp should have the element it can d..." | Read more » | about 1 year ago | |||
| 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 » | about 1 year 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 » | about 1 year ago |