A long-wave optical pH sensor based on red upconversion luminescence of NaGdF4nanotubes

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 55897-55899 ◽  
Author(s):  
Song Wang ◽  
Jing Feng ◽  
Shuyan Song ◽  
Hongjie Zhang
Keyword(s):  
Upconversion Luminescence ◽  
Ph Sensor ◽  
Long Wave ◽  
Optical Ph Sensor

A broadband optical pH sensor using upconversion luminescence

2021 ◽  
Author(s):  
Suresh K ◽  
Aseefhali Bankapur ◽  
C. Santhosh ◽  
Harishkumar Madhyastha ◽  
K Sakai ◽  
...  
Keyword(s):  
Ph Value ◽  
Upconversion Luminescence ◽  
Ph Sensor ◽  
Dye Molecules ◽  
Optical Ph Sensor

Determination of the pH value of a medium without the usage of less photostable and toxic dye molecules or the dye incorporated particles still remains a challenging task. Here, we...

An Optical pH Sensor Based on Diazocine

2017 ◽  
Vol 2 (26) ◽  
pp. 7956-7960 ◽  
Author(s):  
Yanan Liu ◽  
Zuwei Song ◽  
Libin Gao ◽  
Jianzhong Li
Keyword(s):  
Ph Sensor ◽  
Optical Ph Sensor

scholarly journals Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring

Biosensors ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 60 ◽  
Author(s):  
Uswatun Hasanah ◽  
Mita Setyowati ◽  
Rustam Efendi ◽  
Muslem Muslem ◽  
Nor Diyana Md Sani ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Response Time ◽  
Relative Standard Deviation ◽  
Ph Sensor ◽  
Sensor Response ◽  
Relative Standard ◽  
Optical Ph Sensor

In a simple and instant procedure for detecting fish freshness, a hydrogel and hydrophilic pectin matrix membrane was used successfully as an optical pH sensor by immobilizing the chromoionophore ETH 5294 (CI), which is very selective and sensitive for the membrane. The Pe/CI optical pH sensor exhibited excellent linearity between pH 5 and pH 9, with a sensor response time of 5 min and reproducibility of 1.49% relative standard deviation (RSD). The sensor showed response stability for 15 days and a response reduction of 8.6%. The sensor’s capability was demonstrated by the detection of fish freshness for 17 days at 4 °C.

Development of polyaniline–multiwalled carbon nanotube (PANI–MWCNT) nanocomposite for optical pH sensor

2013 ◽  
Vol 17 (4) ◽  
pp. 238-243 ◽  
Author(s):  
M. V. Kulkarni ◽  
N. A. Charhate ◽  
K. V. Bhavsar ◽  
M. A. Tathe ◽  
B. B. Kale
Keyword(s):  
Carbon Nanotube ◽  
Ph Sensor ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Optical Ph Sensor

Evaluation of a luminescent ruthenium complex immobilized inside Nafion as optical pH sensor

The Analyst ◽  
1998 ◽  
Vol 123 (9) ◽  
pp. 1843-1847 ◽  
Author(s):  
Chun-Man Chan ◽  
Kwok-Yin Wong
Keyword(s):  
Ruthenium Complex ◽  
Ph Sensor ◽  
Optical Ph Sensor

Optical pH sensor for physiological pH measurement

1994 ◽  
Author(s):  
Sifu Zhang ◽  
Peter J. Rolfe ◽  
Yappa A. Wickramasinghe
Keyword(s):  
Ph Sensor ◽  
Ph Measurement ◽  
Optical Ph Sensor

Full-range optical pH sensor array based on neural networks

2011 ◽  
Vol 97 (2) ◽  
pp. 225-233 ◽  
Author(s):  
S. Capel-Cuevas ◽  
M.P. Cuéllar ◽  
I. de Orbe-Payá ◽  
M.C. Pegalajar ◽  
L.F. Capitán-Vallvey
Keyword(s):  
Neural Networks ◽  
Sensor Array ◽  
Full Range ◽  
Ph Sensor ◽  
Optical Ph Sensor

Rapid method for the preparation of a robust optical pH sensor

The Analyst ◽  
2003 ◽  
Vol 128 (9) ◽  
pp. 1181 ◽  
Author(s):  
Haley R. Kermis ◽  
Yordan Kostov ◽  
Govind Rao
Keyword(s):  
Rapid Method ◽  
Ph Sensor ◽  
Optical Ph Sensor
Sign in / Sign up

Export Citation Format

Share Document