TY - JOUR
T1 - SWNT sensors for monitoring the oxidation of edible oils
AU - Lee, Keun Soo
AU - Lee, Kyongsoo
AU - Lau, Vincent
AU - Shin, Kyeong
AU - Ju, Byeong Kwon
PY - 2011/2
Y1 - 2011/2
N2 - There are several means to measure the oxidation of edible oils, such as the acid value, the peroxide value, and the anisidine value. However, these means require large quantities of reagents and are time-consuming tasks. Therefore, a more convenient and time-saving way to measure the oxidation of edible oils is required. In this report, an edible oil condition sensor was fabricated by using single-walled nanotubes (SWNT). In order to test the sensor, oxidized edible oils, each one at a different acid value, were prepared. The SWNT sensors were immersed into these oxidized oils and the resistance changes in the sensors were measured. It was found that the conductivity of the sensors decreased as the oxidation level of oil increased. This result suggests that a change of the oil components induced by the oxidation process in edible oils is related to the conductivity change in the SWNT sensor.
AB - There are several means to measure the oxidation of edible oils, such as the acid value, the peroxide value, and the anisidine value. However, these means require large quantities of reagents and are time-consuming tasks. Therefore, a more convenient and time-saving way to measure the oxidation of edible oils is required. In this report, an edible oil condition sensor was fabricated by using single-walled nanotubes (SWNT). In order to test the sensor, oxidized edible oils, each one at a different acid value, were prepared. The SWNT sensors were immersed into these oxidized oils and the resistance changes in the sensors were measured. It was found that the conductivity of the sensors decreased as the oxidation level of oil increased. This result suggests that a change of the oil components induced by the oxidation process in edible oils is related to the conductivity change in the SWNT sensor.
KW - Chemical sensor
KW - Edible oil oxidation
KW - Single-walled carbon nanotubes
UR - http://www.scopus.com/inward/record.url?scp=79953288005&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79953288005&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:79953288005
SN - 2010-376X
VL - 74
SP - 385
EP - 388
JO - World Academy of Science, Engineering and Technology
JF - World Academy of Science, Engineering and Technology
ER -