Abstract
An oscillating piezoelectric crown-ether-coated quartz crystal membrane detector with a computer interface for signal processing was prepared to detect polar organic vapours. The piezoelectric crown ether/quartz membrane detector exhibited high sensitivity with a frequency shift range of 10-340 Hz/(mg/l) for organic gases, a short response time (< 2.0 min), good selectivity and good reproducibility for reusage. Several coatings on quartz membrane crystals based on benzo-15-crown-5 and cryptand-22 were made for responses to organic amines, alcohols, ketones, halides, carboxylic acids and sulfides. Benzo-15-crown-5 functioned as a sensitive coating for alcohols, amines and organic sulfides whereas cryptand-22 was sensitive to amines and carboxylic acids. Steric effects and isomer effects on frequency shifts of the quartz crystal detector based on benzo-15-crown-5 for alcohols and amines were also investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 129-137 |
| Number of pages | 9 |
| Journal | Analytica Chimica Acta |
| Volume | 306 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1995 Apr 28 |
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Keywords
- Crown ethers
- Organic vapour detector
- Piezoelectric sensors
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Environmental Chemistry
- Spectroscopy
Cite this
Detection of polar organic vapours with piezoelectric crystals coated with crown ethers. / Lu, Chia-Jung; Jeng-Shong, Shih.
In: Analytica Chimica Acta, Vol. 306, No. 1, 28.04.1995, p. 129-137.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Detection of polar organic vapours with piezoelectric crystals coated with crown ethers
AU - Lu, Chia-Jung
AU - Jeng-Shong, Shih
PY - 1995/4/28
Y1 - 1995/4/28
N2 - An oscillating piezoelectric crown-ether-coated quartz crystal membrane detector with a computer interface for signal processing was prepared to detect polar organic vapours. The piezoelectric crown ether/quartz membrane detector exhibited high sensitivity with a frequency shift range of 10-340 Hz/(mg/l) for organic gases, a short response time (< 2.0 min), good selectivity and good reproducibility for reusage. Several coatings on quartz membrane crystals based on benzo-15-crown-5 and cryptand-22 were made for responses to organic amines, alcohols, ketones, halides, carboxylic acids and sulfides. Benzo-15-crown-5 functioned as a sensitive coating for alcohols, amines and organic sulfides whereas cryptand-22 was sensitive to amines and carboxylic acids. Steric effects and isomer effects on frequency shifts of the quartz crystal detector based on benzo-15-crown-5 for alcohols and amines were also investigated.
AB - An oscillating piezoelectric crown-ether-coated quartz crystal membrane detector with a computer interface for signal processing was prepared to detect polar organic vapours. The piezoelectric crown ether/quartz membrane detector exhibited high sensitivity with a frequency shift range of 10-340 Hz/(mg/l) for organic gases, a short response time (< 2.0 min), good selectivity and good reproducibility for reusage. Several coatings on quartz membrane crystals based on benzo-15-crown-5 and cryptand-22 were made for responses to organic amines, alcohols, ketones, halides, carboxylic acids and sulfides. Benzo-15-crown-5 functioned as a sensitive coating for alcohols, amines and organic sulfides whereas cryptand-22 was sensitive to amines and carboxylic acids. Steric effects and isomer effects on frequency shifts of the quartz crystal detector based on benzo-15-crown-5 for alcohols and amines were also investigated.
KW - Crown ethers
KW - Organic vapour detector
KW - Piezoelectric sensors
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U2 - 10.1016/0003-2670(94)00676-D
DO - 10.1016/0003-2670(94)00676-D
M3 - Article
AN - SCOPUS:0028916206
VL - 306
SP - 129
EP - 137
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
SN - 0003-2670
IS - 1
ER -