Multiplexed Ultra-Sensitive Detection of Cr(III) and Cr(VI) Ion by FET Sensor Array in a Liquid Medium

• Published in: Sensors (Basel, Switzerland) Vol. 19; no. 9; p. 1969
• Main Authors: Shahim, Suman, Sukesan, Revathi, Sarangadharan, Indu, Wang, Yu-Lin
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 26.04.2019; MDPI
• Subjects: Chromatography; Chromium; Contamination; Drinking water; Electrodes; extended gate field-effect transistors (FETs); Heavy metals; ion-selective membrane (ISM); lab-on-a-chip; Manufacturing; multiplexed heavy metal ion detection; Oxidation; Scientific imaging; sensor array; Sensors; Transistors; User interface; Water quality; United States > US; Taiwan; California; ion-selective membrane (ISM); chromium; extended gate field-effect transistors (FETs); multiplexed heavy metal ion detection; lab-on-a-chip; sensor array

Chromium, one of the top five toxic heavy metals ranked according to significance in public health by WHO, exists as Cr(III) which is naturally occurring or Cr(VI) which is anthropogenic in origin. The EPA specifies the maximum contaminant level in drinking water to be 10−6 M or 0.1 mg/L or 100 ppb...