All Questions
Tagged with elemental-analysis spectroscopy
9
questions
2
votes
0
answers
64
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Negative absorption coefficient
What does a negative absorption coefficient mean?
In detail - I participated in a Synchrotron virtual laboratory. I have to analyze the results and understand what a negative absorption coefficient ...
- 21
2
votes
1
answer
143
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Equipment recommendation for atomic absorption spectroscopy (AAS) testing for mercury, lead, and cadmium
I work in a public health laboratory in a small mining town and we have the chance to buy equipment to test for lead and cadmium in wastewater, and mercury in not just wastewater, but also in blood, ...
- 29
-3
votes
1
answer
526
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Cant figure out whether Lithium or Strontium is in my substance? [closed]
So for uni I got a substance and I have to basically figure out which anions and cations are in it. I get two chances to guess otherwise I get a new substance and have to start from scratch.
Anyway ...
- 11
-1
votes
2
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265
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Why the electrode that is the electron source on a x-ray tube is called cathode? [closed]
In electrochemistry, the electrode that lose electrons and oxidizes is called anode. Why on an x-ray tube the electrode that lose electrons is called cathode?
2
votes
1
answer
52
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Taking a procedure for ICP and adapting it to use with AAS
I was reading a paper regarding metal detection and they gave their procedure for an acid digest of a soil sample which was then analysed by ICP-OES.
They used nitric acid, hydrogen peroxide and ...
3
votes
0
answers
480
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Why aren't lasers used as light sources for atomic absorption spectroscopy?
Atomic absorption spectroscopy yields extremely narrow signals. It is difficult to separate white light with sufficient precision using monochromators, and hollow cathode lamps are often used as light ...
- 731
1
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0
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99
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How does the electron configuration correlate with the emission spectrum of an ionic compound? [closed]
trying to find a way to correlate the electron configuration of an ionic compound (ie. Cupric sulfate, potassium chloride, Cupric chloride, sodium carbonate, strontium chloride) with its emission ...
1
vote
1
answer
669
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metal oxide analysis
I am looking in to analytical techniques for a future project. I may have a mixture of metals, i.e. an alloy, which I am thinking XRF spectroscopy would be the best quantitative technique. I could ...
- 338
2
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2
answers
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experimentally determine oxidation state of Iron compound
I need to make several Iron compounds but I am having a bit of trouble finding a decent way to determine the oxidation state of Iron.
I'm starting with a Iron(II) compound that I try to oxidize using ...
