Analysis of copper (II) in aqueous systems using diethyldithiocarbamate (DEDTC)-paper based chemical sensors

Date

10-2003

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Norriel S Nipales

Abstract

ABSTRACT OBRINCE MARK ROGER VIRTUCIO, College of Arts and Sciences, University of the Philippines at Los Banos, October 2003. ANALYSIS OF COPPER (II) IN AQUEOUS SYSTEMS USING DIETHYLDITHIOCARBAMATE (DEDTC)-PAPER BASED CHEMICAL SENSORS.

Adviser: Dr. Norriel S. Nipales

Copper (II) from Mulawin Creek, Bucal Water Intake Station, IRRI irrigation and Materials Laboratory water samples were analyzed semi-quantitatively using the DEDTC-paper based chemical sensors. The concentrations of copper (II) were determined by Masking method at pH 8.5. Concentrations of copper (II) from Mulawin Creek, Bucal Water Intake Station and IRRI irrigation were below 5mg/L as indicated by the absence of color change in the chemical sensors. Development of light yellow brown color in the sensors was observed in the Materials Laboratory samples showing concentrations between 20 and 50mg/L based from the constructed color charts. Extraction Spectroscopy was used as confirmatory method to determine the concentration of copper (IT) in the water samples. The water samples from the 3 locations had concentrations below the limit of detection (LOD = 0.151mg/L) of the method but the Materials Laboratory samples had 26.9-34.2mg/L concentrations. The stability of the chemical sensors was determined for 14 and 28 days. Based from the colors produced, the sensors were determined be stable for around 7 days.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2003 C4 O27

Document Type

Thesis

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