AMMONIA SELECTIVE BULK ACOUSTIC-WAVE SENSOR-BASED ON NEUTRAL IONOPHORES

Authors
XU YJ SI SH LU CY NIE LH YAO SZ
Citation
Yj. Xu et al., AMMONIA SELECTIVE BULK ACOUSTIC-WAVE SENSOR-BASED ON NEUTRAL IONOPHORES, Analytica chimica acta, 312(1), 1995, pp. 9-13
Citations number
18
Categorie Soggetti
Chemistry Analytical
Journal title
Analytica chimica acta → ACNP
ISSN journal
00032670
Volume
312
Issue
1
Year of publication
1995
Pages
9 - 13
Database
ISI
SICI code
0003-2670(1995)312:1<9:ASBASO>2.0.ZU;2-#
Abstract
A large variety of new coated bulk acoustic wave (BAW) sensors for the detection of ammonia was realized by incorporating a cation-selective neutral ionophore, a H+-selective neutral ionophore and a lipophilic anionic site in the same coating. Such coating generally combines the advantages of a highly selective and reversible recognition of the giv en ionic substrates. The proposed sensor has a response time of 30 s w ith linear response over the ammonia concentration range 0.5-20 mu g l (-1) (ppm).