| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Some very good points! Thank you for the information. My major concern around northern Ohio has always been nitrate run off from fertilizers. Fe..." | Read more » | over 3 years ago | |||
| Ag8n | "The only thing I can think off is the magnesium electrode in the middle of most electric water heaters. It's there to stop the body of the water h..." | Read more » | over 3 years ago | |||
| Ag8n | "There are test strips available for those, too. The more expensive ones are for testing drinking water. The cheaper test strips are for testing fi..." | Read more » | over 3 years ago | |||
| Ag8n | "One of the chapters in the book is "Biosensors for the determination of heavy metals in water". The chapter is by Amra Odobasic, Indira Sestan, an..." | Read more » | over 3 years ago | |||
| Ag8n | "There were some books on " Biosensors for environmental engineering" published a couple of years ago. They had chapters on heavy metal detection. ..." | Read more » | over 3 years ago | |||
| Ag8n | "The reason I ask- the EPA testing will always be expensive. Sometimes you can do some "screening" pH tests that are much cheaper. These would be ..." | Read more » | over 3 years ago | |||
| Ag8n | "If you shop on the commercial sites, there are claims that their kits ( for a variety of tests) will cover soil even though the kits are designed f..." | Read more » | over 3 years ago | |||
| Ag8n | "Can you give more information on the pH test is being done? Who is doing it? What instrument is being used? Thanks for the help. " | Read more » | over 3 years ago | |||
| Ag8n | "Project CyAN with the EPA might be of interest. It is using a newly launched satellite to track cyanobacteria. The new satellite was launched 5-6..." | Read more » | over 3 years ago | |||
| Ag8n | "Ammonia, as from fertilizer, would also increase the pH. It would make the algae like the water, too. There are several methods to test for ammoni..." | Read more » | over 3 years ago | |||
| Ag8n | "Could you be more specific? What exactly the problems are? Algae blooms due to nitrogen runoff are being tracked in some of the great lakes by sa..." | Read more » | over 3 years ago | |||
| Ag8n | "The IR listed above stands for Infra-Red spectroscopy. It might also be FTIR ( Fourier Transform Infra Red spectrscopy). The NIR is short for Near..." | Read more » | over 3 years ago | |||
| Ag8n | "There are commercial plastic recyclers. Please contact them for details. And my experience is in industry, not environmental. But... To get the ..." | Read more » | over 3 years ago | |||
| Ag8n | "What kind of plastics does Formosa Plastics plan on making at this plant? Hopefully, that would have been in a press release. " | Read more » | almost 4 years ago | |||
| Ag8n | "Of you are using windows, start with SDR#. It's freeware. Start by listening to air traffic control in the local area. The new versions of SDR# ..." | Read more » | over 4 years ago | |||
| Ag8n | "Sorry, that should be UAT, not UAB. Look up UAT. " | Read more » | over 4 years ago | |||
| Ag8n | "Ok. There are two easy aircraft tracking systems, ADSB and UAB. ADSB is commonly used on aircraft flying above 10,000 ft. UAB is more often used..." | Read more » | over 4 years ago | |||
| Ag8n | "An impressive step forward. I couldn't tell, from the visual, if the instrument used FTIR transmittance or FTIR reflectance. Could you please cla..." | Read more » | over 4 years ago | |||
| Ag8n | " The United States pharm. had a lot of tests for lead and other elements( like arsenic and barium). You can't argue with its scientific validity- ..." | Read more » | over 5 years ago | |||
| Ag8n | " My mistake, it chemiluminesces in the red, not the blue. Sorry about that. " | Read more » | over 5 years ago | |||
| Ag8n | " I've used ion chromatography(IC) to analyze for a number of ions, including nitrate and nitrite. The new instruments dedicated to IC are much bet..." | Read more » | over 5 years ago | |||
| Ag8n | "Warren got most of the problems with kjeldahl. Here are a few more. Kjeldahl testing takes some specialty glassware. It's not terribly hard to l..." | Read more » | over 5 years ago | |||
| Ag8n | " You might want to look into ANDalyze. They use a new technology based on DNA for heavy metal analysis in water samples. I'd need to see validati..." | Read more » | almost 6 years ago | |||
| Ag8n | " First off, spectrometers are much more common than spectrophotometers, these days. And cheaper too. T he method you referenced relies heavily on..." | Read more » | almost 6 years ago |