Ag8n 17 research notes and 17 wiki edits | Joined over 1 year ago

Retired, after 28 years, as an analytical chemist from a major pharmaceutical corporation.










Is Lego Spectrometer Kit able to detect Glucose?

kokoz asked about 6 months ago

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answered on Nov 14, 2018 0

answered on Nov 20, 2018 0

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Dissolved Oxygen Testing and Citizen Science

belkinsa asked about 8 months ago

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answered on Oct 05, 2018 1

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Anyone working on environmental lead exposure / poisoning?

read_holman asked about 9 months ago

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answered on Aug 15, 2018 0

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answered on Aug 16, 2018 1

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answered on Aug 21, 2018 0

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What is a good way to track vehicular traffic?

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stevie asked about 10 months ago

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answered on Jul 14, 2018 0

answered on Jul 14, 2018 0

answered on Jul 18, 2018 0

answered on Aug 07, 2018 0

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Who do you contact on stormwater concerns?

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stevie asked about 11 months ago

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answered on Jun 20, 2018 0

answered on Jun 23, 2018 0

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What are sources of stormwater pollution?

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stevie asked about 11 months ago

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answered on Jun 19, 2018 0

answered on Jun 23, 2018 0

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Can you detect pvc microplastics with a nvdi camera?

Ag8n asked about about 1 year ago

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answered on Jun 10, 2018 1

answered on Jun 11, 2018 0

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Has anyone experienced measuring and analyzing microplastics?

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niklasjordan asked about about 1 year ago

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answered on May 17, 2018 1

answered on May 29, 2018 1

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PAHs spectra

mephiengineer asked about about 1 year ago

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answered on Apr 10, 2018 0

answered on Apr 11, 2018 0

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How to test water for heavy metals today?

Devon7 asked about about 1 year ago

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answered on Mar 26, 2018 0

answered on Apr 12, 2018 0

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can a spectrometer be used to measure color of water ?

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thangvu asked about about 1 year ago

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answered on Mar 24, 2018 1

answered on Mar 24, 2018 1

answered on Mar 26, 2018 0

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How do I choose a method for monitoring turbidity?

stevie asked about about 1 year ago

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answered on Mar 21, 2018 0

answered on Mar 22, 2018 0

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Comments

Comment Last activity Moderation
"A word of warning. A number of tests have been developed along this line. This includes the lowry, bradford, LEAP (latex Elisa for allergenic prot..." | Read more » 6 months ago
"Another good way to quantitate sugars is with a refractometer. They are pretty cheap and often used in wineries. " | Read more » 6 months ago
"The purple air monitors have a low r2 value for the pm10 testing. This may lead to the skewing that you are talking about. I corresponded with th..." | Read more » 6 months ago
"In wwii, they had a kytoon ( a mixture kite and balloon for lifting emergency antennas)for downed airman. They show up now and then in the sur plu..." | Read more » 6 months ago
"Sir, This may be a dumb question, and if so, I apologize. Most raw data has anomalous data included. How would a newcomer detect the anomalous da..." | Read more » 7 months ago
"There are a number of parts to six sigma. The different parts go from statistical analysis to design of experiment (DOE). While there are some bus..." | Read more » 7 months ago
"One industry program for statistics ( or sadistics, as a nicname) is six sigma. This is a relatively expensive program that includes ( not kidding..." | Read more » 7 months ago
"You know, there is a type of visible reflectance done often. It's the type used for paint matching in hardware stores and other similar places. T..." | Read more » 7 months ago
"The most common place for reflectance work is in infra-red(IR) and near infra-red (NIR) work. In the NIR, this is called NIRR. With IR, the most ..." | Read more » 7 months ago
"Thank you for your reply.  The problem is in the midwest/great lakes area.  This is fresh water.  For whatever reason, there has been an overly hig..." | Read more » 7 months ago
"My background is mostly industrial- specifically pharmaceutical. So much of the testing was guided by something like The USP. The instruments were..." | Read more » 8 months ago
"Sorry for the delay in answering. Spectroscopy is used many places in industry and medicine. For example, a variation of visible spectrometry is ..." | Read more » 8 months ago
"Is there anyway the water temperature can be measured? In one of these cases, the claim was that the DO was lower due to increased temperature. T..." | Read more » 8 months ago
"I agree that the original data should be used. But, if the sanity check is not zero, that result should also be recorded, or at least noted. " | Read more » 9 months ago
"My major concern is about water. Yes, we have 5 gal jugs of water on hand. But only a few of them. We live in a rural area, and in a power outag..." | Read more » 9 months ago
"It has been strange to track FEMA over the years. Initally, say 30 years ago, they said you needed three days of food and water. Then it changed ..." | Read more » 9 months ago
"The problem is the dilute vinegar they provide won't penetrate all materials ( i.e. Not all kinds of paint, not all kinds of plastic, etc.). So yo..." | Read more » 9 months ago
"Nice sharp lines on the neon spectrum! Good job! " | Read more » 9 months ago
"Thank you for the answer! " | Read more » 9 months ago
"As for what method can do soil, paint, water, etc. Edxrf has a big problem with water. Water absorbs xrays. You can get around this by evaporati..." | Read more » 9 months ago
"As for what method can do soil, paint, water, etc. Edxrf has a big problem with water. Water absorbs xrays. You can get around this by evaporati..." | Read more » 9 months ago
"As for difficulty: Worst is ICP- ME ICP-OES GFAA AS EDXRF Wet chemical Easiest Many of the wet chemical methods can only detect heavy metals as le..." | Read more » 9 months ago
"Read- ICP-MS is the premier method.no doubt. But you pay for it. I'm second place is ICP-OES (ICP-optical emission spectrometry). Pretty much th..." | Read more » 9 months ago
"I'd be happy to help. Give me some time to look it over. I've worked extensively with EDXRF, but mostly the desktop (read R&D) variety. Only..." | Read more » 9 months ago




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