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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Precipitation Titration: Endpoint Detection Methods01:19

Precipitation Titration: Endpoint Detection Methods

In argentometric precipitation titrations, endpoints can be detected visually by the Mohr, Volhard, and Fajans methods. In the Mohr method, adding a soluble chromate indicator gives an initial yellow color to the analyte solution. As the titrant is added, the first excess of silver ions forms a red silver chromate precipitate, marking the endpoint. The solution pH should be maintained at about 8 by adding solid CaCO3.
In the Volhard method, a standard excess of AgNO3 is first added to the...
Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Voltammetric Techniques: Linear-Scan (E vs Time)01:12

Voltammetric Techniques: Linear-Scan (E vs Time)

Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping mercury electrode (DME), and the resulting current is measured. A dropping mercury electrode is commonly used as the working electrode in polarography. It consists of a capillary tube filled with mercury, where the tiny droplet forms at the tip. This droplet continuously drops from the capillary, creating a new electrode surface for each...

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Related Experiment Video

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Method for Simultaneous fMRI/EEG Data Collection during a Focused Attention Suggestion for Differential Thermal Sensation
06:33

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Published on: January 5, 2014

A simultaneous voltammetric temperature and humidity sensor.

Linhongjia Xiong1, Ai M Fletcher, Stephen G Davies

  • 1Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, UK.

The Analyst
|September 25, 2012
PubMed
Summary
This summary is machine-generated.

This study presents a novel method for simultaneously measuring temperature and humidity using square wave voltammetry of ferrocene derivatives. The technique offers a reliable way to determine environmental conditions through electrochemical analysis.

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Area of Science:

  • Electrochemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Simultaneous measurement of environmental parameters like temperature and humidity is crucial for various applications.
  • Developing novel electrochemical sensors offers a promising avenue for accurate and efficient sensing.

Purpose of the Study:

  • To develop and demonstrate a reliable method for simultaneous temperature and humidity measurement.
  • To investigate the electrochemical behavior of ferrocene derivatives under varying environmental conditions.

Main Methods:

  • Utilizing square wave voltammetry (SWV) to analyze the responses of decamethylferrocene (DmFc) and 1,2-diferrocenylethylene (BisFc).
  • Studying the relative peak potentials of BisFc/BisFc(+) and BisFc(+)/BisFc(2+) redox couples against the DmFc/DmFc(+) couple.
  • Conducting experiments across a temperature range of 298 K to 318 K and a humidity range of 1% to 50%.

Main Results:

  • Established distinct temperature and humidity dependences for the relative peak potentials of the studied ferrocene derivatives.
  • Demonstrated a reliable method for calculating temperature and humidity based on SWV data.
  • Identified three distinct peaks in the square wave voltammograms of the ferrocene derivatives.

Conclusions:

  • The electrochemical responses of DmFc and BisFc in [Moepyrr][FAP] ionic liquid can be effectively used for simultaneous temperature and humidity sensing.
  • This voltammetric method provides a characterized and demonstrated approach for environmental monitoring.