Questions tagged [sensor]

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What is the explicit difference between ICT and PET for sensors?

I've been reading about boronic acid based sensors for saccharides (glucose, fructose, etc). Boronic acids are able to complex with diols to form boronate esters and if there is a luminophore on the ...
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1answer
26 views

pH sensor showing incorrect measurement after using on acidic solution

I recently acquired an electrode pH sensor for a project of mine. After calibrating the sensor I used it on tap water and then lemon water to test their respective pH. After finding the pH of the ...
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17 views

How carbon nanotube sensors works?

How carbon nanotube sensors works? Is the protein (or chemical compound used as part of the sensor) placed inside the tube or where is it placed? and how is the technology used to place the protein ...
3
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1answer
45 views

Sensitivity vs. Limit of Detection of rapid antigen tests

I'm comparing a bunch of SARS-CoV2 rapid antigen tests: Columns 4 and 6 list the values for sensitivity and limit of detection (LOD). How come that a test with a several times lower limit of ...
6
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2answers
128 views

How to measure chlorine content using ORP sensor?

In my project I need to measure pH, turbidity, and chlorine level of treated drinking water. I found sensors for measuring pH, turbidity, and also chlorine. The actual problem begins is that the cost ...
2
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1answer
78 views

Tools like Litmus Paper

Litmus papers are used to test acidity and alkalinity of a fluid. Are there other paper-based tools to test for other stuff like dissolved oxygen, presence of toxicity, electric potential etc?
3
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92 views

How much glucose oxidase is usually deposited on a glucometer strip?

The concentration of serum glucose is on average roughly around 5 mmol/L and let's say a typical blood droplet applied to a glucometer is 1μL. We are therefore depositing 5 nmol of glucose on the test ...