Comments

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 » almost 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 » almost 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » about 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 » over 3 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 » almost 4 years ago
Ag8n "Sorry, that should be UAT, not UAB. Look up UAT. " | Read more » almost 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 » almost 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 » about 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 » about 5 years ago
Ag8n " My mistake, it chemiluminesces in the red, not the blue. Sorry about that. " | Read more » about 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 » about 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 » about 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 » over 5 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 » over 5 years ago