Towards a miniaturized ambient ammonia detection system

B.H. Timmer; K.M. van Delft; R.P. Otjes; W. Olthuis; P. Bergveld; A. van den Berg

Towards a miniaturized ambient ammonia detection system

B.H. Timmer
, K.M. van Delft
, R.P. Otjes
, W. Olthuis
, P. Bergveld
, A. van den Berg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The development of a miniaturized ammonia sensor is described. First, gas is sampled into an acid sample solution using a miniaturized gas sampler. Subsequently, the solution is pumped into a selector, comprising two channels separated by a gas permeable, water repellent polypropylene membrane, while adding an alkaline solution to dissociate all acid gasses and neutralize the alkaline gasses. The resulting
gaseous ammonia can diffuse through the membrane into a purified water stream where an electrolyte conductivity sensor quantifies the resulting ammonium concentration. The realized system has a detection limit for ammonia below 1 ppm and is shown to be selective with respect to normal ambient carbon dioxide concentrations.

Original language	English
Title of host publication	Proceedings of MicroTAS 2003
Subtitle of host publication	7th International Conference on Micro Total Analysis Systems
Editors	M.A. Northrup, K.F Jensen, D.J. Harrison
Place of Publication	Ohio
Publisher	Transducers Research Foundation, Inc.
Pages	81-84
Number of pages	4
Volume	1
ISBN (Print)	0-9743611-0-0
Publication status	Published - 5 Oct 2003
Event	7th International Symposium on Micro Total Analysis Systems, μTAS 2003 - Squaw Valley, United States Duration: 5 Oct 2003 → 9 Oct 2003 Conference number: 7

Conference

Conference	7th International Symposium on Micro Total Analysis Systems, μTAS 2003
Abbreviated title	MicroTAS
Country/Territory	United States
City	Squaw Valley
Period	5/10/03 → 9/10/03

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Towards a miniaturization ambient ammonia detection system
Timmer, B. H., van Delft, K. M., Otjes, R. P., Olthuis, W., Bergveld, P. & van den Berg, A., 2 Oct 2003. 1 p.
Research output: Contribution to conference › Poster › Other research output

Cite this

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title = "Towards a miniaturized ambient ammonia detection system",

abstract = "The development of a miniaturized ammonia sensor is described. First, gas is sampled into an acid sample solution using a miniaturized gas sampler. Subsequently, the solution is pumped into a selector, comprising two channels separated by a gas permeable, water repellent polypropylene membrane, while adding an alkaline solution to dissociate all acid gasses and neutralize the alkaline gasses. The resulting gaseous ammonia can diffuse through the membrane into a purified water stream where an electrolyte conductivity sensor quantifies the resulting ammonium concentration. The realized system has a detection limit for ammonia below 1 ppm and is shown to be selective with respect to normal ambient carbon dioxide concentrations.",

author = "B.H. Timmer and \{van Delft\}, K.M. and R.P. Otjes and W. Olthuis and P. Bergveld and \{van den Berg\}, A.",

year = "2003",

month = oct,

day = "5",

language = "English",

isbn = "0-9743611-0-0",

volume = "1",

pages = "81--84",

editor = "M.A. Northrup and K.F Jensen and D.J. Harrison",

booktitle = "Proceedings of MicroTAS 2003",

publisher = "Transducers Research Foundation, Inc.",

note = "7th International Symposium on Micro Total Analysis Systems, μTAS 2003, MicroTAS ; Conference date: 05-10-2003 Through 09-10-2003",

}

Timmer, BH, van Delft, KM, Otjes, RP, Olthuis, W, Bergveld, P & van den Berg, A 2003, Towards a miniaturized ambient ammonia detection system. in MA Northrup, KF Jensen & DJ Harrison (eds), Proceedings of MicroTAS 2003: 7th International Conference on Micro Total Analysis Systems. vol. 1, Transducers Research Foundation, Inc., Ohio, pp. 81-84, 7th International Symposium on Micro Total Analysis Systems, μTAS 2003, Squaw Valley, California, United States, 5/10/03.

Towards a miniaturized ambient ammonia detection system. / Timmer, B.H.; van Delft, K.M.; Otjes, R.P. et al.
Proceedings of MicroTAS 2003: 7th International Conference on Micro Total Analysis Systems. ed. / M.A. Northrup; K.F Jensen; D.J. Harrison. Vol. 1 Ohio: Transducers Research Foundation, Inc., 2003. p. 81-84.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Towards a miniaturized ambient ammonia detection system

AU - Timmer, B.H.

AU - van Delft, K.M.

AU - Otjes, R.P.

AU - Olthuis, W.

AU - Bergveld, P.

AU - van den Berg, A.

N1 - Conference code: 7

PY - 2003/10/5

Y1 - 2003/10/5

N2 - The development of a miniaturized ammonia sensor is described. First, gas is sampled into an acid sample solution using a miniaturized gas sampler. Subsequently, the solution is pumped into a selector, comprising two channels separated by a gas permeable, water repellent polypropylene membrane, while adding an alkaline solution to dissociate all acid gasses and neutralize the alkaline gasses. The resulting gaseous ammonia can diffuse through the membrane into a purified water stream where an electrolyte conductivity sensor quantifies the resulting ammonium concentration. The realized system has a detection limit for ammonia below 1 ppm and is shown to be selective with respect to normal ambient carbon dioxide concentrations.

AB - The development of a miniaturized ammonia sensor is described. First, gas is sampled into an acid sample solution using a miniaturized gas sampler. Subsequently, the solution is pumped into a selector, comprising two channels separated by a gas permeable, water repellent polypropylene membrane, while adding an alkaline solution to dissociate all acid gasses and neutralize the alkaline gasses. The resulting gaseous ammonia can diffuse through the membrane into a purified water stream where an electrolyte conductivity sensor quantifies the resulting ammonium concentration. The realized system has a detection limit for ammonia below 1 ppm and is shown to be selective with respect to normal ambient carbon dioxide concentrations.

M3 - Conference contribution

SN - 0-9743611-0-0

VL - 1

SP - 81

EP - 84

BT - Proceedings of MicroTAS 2003

A2 - Northrup, M.A.

A2 - Jensen, K.F

A2 - Harrison, D.J.

PB - Transducers Research Foundation, Inc.

CY - Ohio

T2 - 7th International Symposium on Micro Total Analysis Systems, μTAS 2003

Y2 - 5 October 2003 through 9 October 2003

ER -

Towards a miniaturized ambient ammonia detection system

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Towards a miniaturization ambient ammonia detection system

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