| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| calitinshop | "Cali Tins weed for sale | Buy Cali Tins Online https://calitinshop.com Space Monkey Meds Cali Weed for sale online calitinshop.com Cali Tins weed..." | Read more » | over 4 years ago | |||
| Engineerjaykumar | " I am telling a advice about to use the Perfect construction technology and proper Admixtures in concrete , if well is constructed with concrete , ..." | Read more » | over 4 years ago | |||
| stevie | "Also, the drinking water standard for nitrates is 10 milligrams per liter (10 mg/l) nitrate-N, or 45 mg/l nitrate-NO3. Most of the consumer tests f..." | Read more » | over 4 years ago | |||
| stevie | "I just looked into these a little further. All of them use sulphuric acid which can be dangerous. The brown ring test: https://byjus.com/chemistry..." | Read more » | over 4 years ago | |||
| yp1080030 | " different types of nitrate tests: the brown ring test, Devarda's test, diphenylamine test, and copper turning test CLICK HERE " | Read more » | over 4 years ago | |||
| stevie | "Hi! This is helpful thank you!! can you say more about the tests- how you might conduct it, the costs or the supplies you need for each one? " | Read more » | over 4 years ago | |||
| healthydarkside | "There are four different types of nitrate tests: the brown ring test, Devarda's test, diphenylamine test, and copper turning test. The brown ring t..." | Read more » | over 4 years ago | |||
| Engineerjaykumar | "There is so many test for this these are: Nitrate can be removed from drinking water by three methods: distillation, reverse osmosis, and ion excha..." | Read more » | over 4 years ago | |||
| gloryaec | "Stevie, Thanks for asking this of others. Glory Adams On 12/16/2019 8:59 AM, notifications@publiclab.org wrote: Are the..." | Read more » | over 4 years ago | |||
| Bronwen | "I think the quickest/cheapest nitrate testing kits may be found in your local pet store (or online retailer) in the aquarium section.. you can get ..." | Read more » | over 4 years ago | |||
| ch_tavan | " Thank you Lisdahl, I will try to find smaller flow cells that are easier to clean. I use a green LED and a photodiode BPW21 for the detector part..." | Read more » | about 5 years ago | |||
| lizdahl | " That cell is likely just too big for what you are trying to do and therefore hard to flush. I like using z-cells and tiny volumes since it is eas..." | Read more » | about 5 years ago | |||
| ch_tavan | " I use a flow cell that I bought. It is 0.48 ml in volume. I have problems filling the cell and cleaning. I think my cell is not suitable for my fe..." | Read more » | about 5 years ago | |||
| lizdahl | " The main cost for for a FIA or SIA would be a peristaltic pump and a flow cell - I've built my own a couple of times. You could make a flow cell ..." | 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 » | 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 | |||
| fez | "That's great...thank you Warren. It's good to see something is moving in this direction too! So far DIY sensing is mostly relegated to air quality ..." | Read more » | over 6 years ago | |||
| warren | "We're starting to compile a lot of different sensors and testing methods here -- could be of help! https://publiclab.org/wiki/water-sensors " | Read more » | over 6 years ago | |||
| cfastie | "I have not worked with water chemistry sensors, but your first impression might be a good one -- a device that can send encoded concentrations of N..." | Read more » | over 7 years ago |