Gold nanoparticles for the quantification of very low levels of poly-diallyldimethylammonium chloride in river water

Bhekumuzi Gumbi; Jane Catherine Ngila; Patrick Gathura Ndungu

doi:10.1039/c4ay00200h

Gold nanoparticles for the quantification of very low levels of poly-diallyldimethylammonium chloride in river water

Bhekumuzi Gumbi, Jane Catherine Ngila, Patrick Gathura Ndungu

Chemical Sciences

University of KwaZulu-Natal

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We present a colorimetric method based on gold nanoparticle aggregation to detect and quantify poly-diallyldimethylammonium chloride (poly-DADMAC), a common water treatment polyelectrolyte, in river water. The protocol developed has an excellent linear range between 10 and 100 μg L^-1 (R = 0.99), with a lower limit of detection of 0.54 μg L^-1 and a lower limit of quantification of 1.5 μg L^-1. The method has excellent intermediate precision (0.1-0.7%), relatively quick analysis times, requires no extraction or derivatization methods, and is robust and rugged. Results of spiked river water samples collected from the Umgeni River located in the province of KwaZulu-Natal, South Africa show that the method can detect low levels of poly-DADMAC in environmental matrices. This journal is

Original language	English
Pages (from-to)	6963-6972
Number of pages	10
Journal	Analytical Methods
Volume	6
Issue number	17
DOIs	https://doi.org/10.1039/c4ay00200h
Publication status	Published - 7 Sept 2014

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
General Engineering

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abstract = "We present a colorimetric method based on gold nanoparticle aggregation to detect and quantify poly-diallyldimethylammonium chloride (poly-DADMAC), a common water treatment polyelectrolyte, in river water. The protocol developed has an excellent linear range between 10 and 100 μg L-1 (R = 0.99), with a lower limit of detection of 0.54 μg L-1 and a lower limit of quantification of 1.5 μg L-1. The method has excellent intermediate precision (0.1-0.7%), relatively quick analysis times, requires no extraction or derivatization methods, and is robust and rugged. Results of spiked river water samples collected from the Umgeni River located in the province of KwaZulu-Natal, South Africa show that the method can detect low levels of poly-DADMAC in environmental matrices. This journal is",

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AB - We present a colorimetric method based on gold nanoparticle aggregation to detect and quantify poly-diallyldimethylammonium chloride (poly-DADMAC), a common water treatment polyelectrolyte, in river water. The protocol developed has an excellent linear range between 10 and 100 μg L-1 (R = 0.99), with a lower limit of detection of 0.54 μg L-1 and a lower limit of quantification of 1.5 μg L-1. The method has excellent intermediate precision (0.1-0.7%), relatively quick analysis times, requires no extraction or derivatization methods, and is robust and rugged. Results of spiked river water samples collected from the Umgeni River located in the province of KwaZulu-Natal, South Africa show that the method can detect low levels of poly-DADMAC in environmental matrices. This journal is

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Gold nanoparticles for the quantification of very low levels of poly-diallyldimethylammonium chloride in river water

Abstract

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