What is the Role of Resistivity in Determining the Purity of Solvents?

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In summary, the conversation discusses two papers on thermoluminescence of ultra-high dilutions of lithium chloride and sodium chloride. The question of how the purity of the solvent is ensured is raised, and the response suggests using resistivity as a method for determining purity. The purpose of thermoluminescence and its use in determining structure is also briefly mentioned.
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Dr Bwts
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Thermoluminescence questions...

Hi,

First off apologies if this is in the wrong sub-forum.

I was given the following two papers to read...

Thermoluminescence of ultra-high dilutions of lithium chloride and sodium chloride.
Rey, L.
Physica A 323 (2003) 67–74.

Thermoluminescence in ultra-high dilution research.
van Wijk R, Bosman S, van Wijk EP.
J Altern Complement Med. 12(5) (2006) 437-43.

I don't expect anyone to read them just for reference.

One question kept bugging me. Given that the papers are looking at the effects of ultra high dilutions how can they be assured of the purity of the solvent in the first place?

From my understanding thermoluminescence is the re-emission of previously absorbed protons and the spectograph can give an indication of the structure. Is this correct?

Thanks for any help,

Dr. B
 
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I haven't looked up your papers yet, but if the solvent is water, the go to method for determining the purity is good old resistivity. Ultra pure deionized water has a resistivity of 18.2 mega-ohms, and that resistance drops extremely fast if there are any ions present.
 

FAQ: What is the Role of Resistivity in Determining the Purity of Solvents?

What is thermoluminescence?

Thermoluminescence is the process in which certain materials emit light after being exposed to high temperatures. This occurs because the material absorbs energy from the heat and releases it in the form of light when heated.

How does thermoluminescence dating work?

Thermoluminescence dating is a method used to determine the age of archaeological artifacts or geological samples. It works by measuring the amount of light emitted from a sample when it is heated. The more light emitted, the longer the sample has been exposed to high temperatures, and thus the older it is.

What types of materials can be dated using thermoluminescence?

Thermoluminescence dating can be used on a variety of materials, including pottery, bricks, ceramics, and minerals such as quartz and feldspar. These materials must have been heated to high temperatures in the past in order for the dating method to be effective.

Is thermoluminescence dating accurate?

Thermoluminescence dating is considered to be a reliable method for determining the age of materials. However, the accuracy of the dating can be affected by factors such as contamination of the sample or incomplete resetting of the luminescence signal.

What are some other applications of thermoluminescence besides dating?

In addition to dating, thermoluminescence has several other uses in scientific research. It is commonly used in radiation dosimetry to measure the exposure of materials to ionizing radiation. It can also be used in material analysis and identification, as different materials will have unique thermoluminescence signatures.

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