Flow Injection Spectrophotometric Determination of Cetylpyridinium Bromide in Environmental Water Samples

Author

Li Hua

Author_Institution

Key Subject Lab. for Radioactive Waste & Environ. Security, South West Univ. of Sci. & Technol., Mianyang, China

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

4

Abstract

A flow injection spectrophotometric method for rapid determination of Cetylpyridinium Bromide (CPB) is proposed in this paper. The method is based on the reaction of Cetylpyridinium Bromide with xylenol orange (XO) in the medium of (CH₂)₆N₄-HCl (pH=5.4) buffer solution. The absorbance intensity was registered in this reaction solution at 520 nm. The calibration graph is linear in the range of 0.5-2.4mg I^-1. The detection limit is 0.11 mg I^-1 at a sampling frequency of 20h^-1. The relative standard deviation was 0.43% CPB (n=6). This method is very simple, rapid and suitable for automatic and continuous analysis. The presented system has been applied successfully to determination of CPB of environmental water samples.

Keywords

organic compounds; pH; spectrochemical analysis; spectrophotometry; surfactants; visible spectra; water pollution measurement; absorbance intensity; automatic analysis; calibration graph; cationic surfactant; cetylpyridinium bromide; continuous analysis; environmental water samples; flow injection spectrophotometric determination; reaction solution; relative standard deviation; wavelength 520 nm; xylenol orange; Absorption; Calibration; Chemicals; Coils; Optimization; Valves; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on

Conference_Location

Wuhan

ISSN

2151-7614

Print_ISBN

978-1-4244-5088-6

Type

conf

DOI

10.1109/icbbe.2011.5780797

Filename

5780797