Sub-ppt detection limits for copper ions with Gly-Gly-His modified electrodes.
An electrochemical metal ion sensor has been developed with a detection limit of less than 0.2 ppt by the covalent attachment of the tripeptide Gly-Gly-His as a recognition element to a 3-mercaptopropionic acid modified gold electrode.
Yang
W
W
School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.
Jaramillo
D
D
Gooding
J J
JJ
Hibbert
D B
DB
Zhang
R
R
Willett
G D
GD
Fisher
K J
KJ
D015097:3-Mercaptopropionic Acid / Q000737:chemistry; D015374:Biosensing Techniques; D003300:Copper / Q000737:chemistry* / Q000378:metabolism; D004563:Electrochemistry; D005998:Glycine / Q000737:chemistry* / Q000378:metabolism; D006046:Gold / Q000737:chemistry; D006639:Histidine / Q000737:chemistry* / Q000378:metabolism; D017736:Ion-Selective Electrodes; D010084:Oxidation-Reduction; D011199:Potentiometry
D006639:Histidine; D006046:Gold; D003300:Copper; D015097:3-Mercaptopropionic Acid; D005998:Glycine