Sequential injection analysis of nitrate ions using a microfluidic polymer chip with an embedded ion-selective electrode

Benjaporn Tossanaitada; Takashi Masadome; Toshihiko Imato

doi:10.1039/c2ay25882j

Sequential injection analysis of nitrate ions using a microfluidic polymer chip with an embedded ion-selective electrode

Benjaporn Tossanaitada, Takashi Masadome, Toshihiko Imato

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

9 Citations (Scopus)

Abstract

A sequential injection analysis (SIA) system for the determination of NO₃^- ions using a microfluidic polymer chip with an embedded NO₃^- ion-selective electrode (NO₃ ^--ISE) as a detector was developed. Under the optimal flow conditions of the SIA system, the NO₃^--ISE showed a good linear relationship between peak heights and logarithmic concentrations of NO ₃^- ions with a Nernstian slope of 57.1 mV per decade in a concentration range from 1.0 × 10^-5 to 1.0 × 10 ^-1 mol dm^-3. Sample throughput of the present system for the determination of NO₃^- ions was ca. 12 samples per h. The proposed SIA system was applied to the determination of the level of NO ₃^- ions in environmental water samples, such as tap water, well water and river water.

Original language	English
Pages (from-to)	4384-4388
Number of pages	5
Journal	Analytical Methods
Volume	4
Issue number	12
DOIs	https://doi.org/10.1039/c2ay25882j
Publication status	Published - 2012 Dec

ASJC Scopus subject areas

Analytical Chemistry
Chemical Engineering(all)
Engineering(all)

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title = "Sequential injection analysis of nitrate ions using a microfluidic polymer chip with an embedded ion-selective electrode",

abstract = "A sequential injection analysis (SIA) system for the determination of NO3- ions using a microfluidic polymer chip with an embedded NO3- ion-selective electrode (NO3 --ISE) as a detector was developed. Under the optimal flow conditions of the SIA system, the NO3--ISE showed a good linear relationship between peak heights and logarithmic concentrations of NO 3- ions with a Nernstian slope of 57.1 mV per decade in a concentration range from 1.0 × 10-5 to 1.0 × 10 -1 mol dm-3. Sample throughput of the present system for the determination of NO3- ions was ca. 12 samples per h. The proposed SIA system was applied to the determination of the level of NO 3- ions in environmental water samples, such as tap water, well water and river water.",

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AU - Tossanaitada, Benjaporn

AU - Masadome, Takashi

AU - Imato, Toshihiko

PY - 2012/12

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AB - A sequential injection analysis (SIA) system for the determination of NO3- ions using a microfluidic polymer chip with an embedded NO3- ion-selective electrode (NO3 --ISE) as a detector was developed. Under the optimal flow conditions of the SIA system, the NO3--ISE showed a good linear relationship between peak heights and logarithmic concentrations of NO 3- ions with a Nernstian slope of 57.1 mV per decade in a concentration range from 1.0 × 10-5 to 1.0 × 10 -1 mol dm-3. Sample throughput of the present system for the determination of NO3- ions was ca. 12 samples per h. The proposed SIA system was applied to the determination of the level of NO 3- ions in environmental water samples, such as tap water, well water and river water.

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Sequential injection analysis of nitrate ions using a microfluidic polymer chip with an embedded ion-selective electrode

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