| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "I've seen a bunch of different things used, but cuvette s are most common. " | Read more » | about 6 years ago | |||
| Ag8n | "If you are looking for 1 cm x 1 cm cuvettes , they should be transparent on all four sides. This way, they can be used for both turbidimeters and ..." | Read more » | about 6 years ago | |||
| Ag8n | "Let me do a little more research and get back to you. " | Read more » | about 6 years ago | |||
| Ag8n | "Copper and copper (I) oxide can be determined visually, based on color. Copper (II) oxide and copper sulfide, both of which are black, cannot be e..." | Read more » | about 6 years ago | |||
| Ag8n | "Hi Gretchen. Out of curiousity, what progress has been made on this question? Thanks. " | Read more » | about 6 years ago | |||
| Ag8n | "You hit the nail on the head with auto correct. Good luck with your project. " | Read more » | about 6 years ago | |||
| Ag8n | "There are several other previous questions that discuss this. But crazy is is correct, all tds meters are conductivity meters. One side note- ther..." | Read more » | about 6 years ago | |||
| Ag8n | "Sorry, I didn't finish the instrument explanation. After determining the size of a particle,most instruments find out how many particles are great..." | Read more » | about 6 years ago | |||
| Ag8n | "Yeah, that is part of the question. The medical devices had direct access to the blood stream and lungs. So particle number and size was critical..." | Read more » | about 6 years ago | |||
| Ag8n | "In this area (Ohio), at least, trace levels of hypochlorite ( bleach) work their way into the storm sewer. If you have a piece of red pH paper, b..." | Read more » | about 6 years ago | |||
| Ag8n | "You want to check the expiration date of the strips, first. If they are expired, throw them out. And beware. If you are using something like red ..." | Read more » | about 6 years ago | |||
| Ag8n | "Wondered about that. The main plant Had a storm sewer. One of the small satellite plants had something labelled a storm sewer. But, when the sam..." | Read more » | about 6 years ago | |||
| Ag8n | "It gives a range of magnifications. As for sample prep- "samples were mounted in aroclor 5442 or the equivalent Carville refractive index liquid 1..." | Read more » | about 6 years ago | |||
| Ag8n | "See below These are photos taken from" the particle atlas", second edition, volume II, by mccrone. " | Read more » | about 6 years ago | |||
| Ag8n | "I checked the images. There are pictures of quartz and several for cristobalite. Didn't see one for tridymite. " | Read more » | about 6 years ago | |||
| Ag8n | "I'm no expert on microscopy. Did mess with it a little. The difference I notice is a lot of the work is done with crossed polars- messing with th..." | Read more » | about 6 years ago | |||
| Ag8n | "I do have a copy of edition two, which is four volumes. Volume 1 goes over microscopes, volume 2 gives pictures of the different materials, and vo..." | Read more » | about 6 years ago | |||
| Ag8n | "Got it! It's at: Https://www.grc.nasa.gov/www//k-12/airplane/kitesag.html It also has a link to a program called kitemodeller, since the math for..." | Read more » | about 6 years ago | |||
| Ag8n | "May not work with those sensors, but.. Many of the weather stations can be wirelessly received with an rtlsdr ( they cost about $20). The program a..." | Read more » | about 6 years ago | |||
| Ag8n | "I checked Amazon. There are several tds meters that also do conductivity for a price of under $20. Since a scientific model lists for about $1000,..." | Read more » | about 6 years ago | |||
| Ag8n | "Sorry. Truncated the internet address: Https://www.hydroponics.net/learn/debate_over_ec_and_tds.php " | Read more » | about 6 years ago | |||
| Ag8n | "Check out: Https://www.hydroponics.net/lear All tds meters are conductivity meters, but according to the article, they may not all use the same c..." | Read more » | about 6 years ago | |||
| Ag8n | "I think it is. Was hoping someone was more familiar than me. Different websites talk about charge and others about conductivity, which can be two..." | Read more » | about 6 years ago | |||
| Ag8n | "The current epa method for turbidity, with standard prep, is at: Https://epa.gov/sites/production/files//2015-08/documents/method_180-1_1993.pdf ..." | Read more » | about 6 years ago |