Spectroscopic in Situ Imaging of Acid Coextraction Processes in Solvent Polymeric Ion-Selective Electrode and Optode Membranes

1998 ◽  
Vol 70 (6) ◽  
pp. 1176-1181 ◽  
Author(s):  
Ernö Lindner ◽  
Titus Zwickl ◽  
Eric Bakker ◽  
Bui Thi Thu Lan ◽  
Klara Tóth ◽  
...  
Keyword(s):  
Ion Selective Electrode ◽  
Selective Electrode ◽  
In Situ Imaging

CdS-Intercalated Bentonite: A Novel Sulfide Ion Selective Electrode

2011 ◽  
Vol 110-116 ◽  
pp. 472-477 ◽  
Author(s):  
Kemawadee Udomphan ◽  
Atchana Wongchaisuwat ◽  
Ladda Meesuk
Keyword(s):  
Carboxymethyl Cellulose ◽  
Low Cost ◽  
Ion Selective Electrode ◽  
Good Precision ◽  
Selective Electrode ◽  
Solid Reaction ◽  
Artificial Graphite ◽  
Sulfide Ion

CdS-intercalated bentonite was prepared by an in situ solid-solid reaction and mixed with artificial graphite, polytetrafluoroethylene (PTFE) and carboxymethyl cellulose (CMC) in an appropriate ratio to construct a novel, potentiometric sulfide ion selective electrode. Apart from its good selectivity, the electrode is low cost and good precision.

scholarly journals An All-Solid-State Nitrate Ion-Selective Electrode with Nanohybrids Composite Films for In-Situ Soil Nutrient Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2270
Author(s):  
Ming Chen ◽  
Miao Zhang ◽  
Xuming Wang ◽  
Qingliang Yang ◽  
Maohua Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Composite Film ◽  
Composite Films ◽  
Influential Factors ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
N Content ◽  
Detection Range ◽  
Electrochemically Reduced Graphene Oxide

In this paper, an all-solid-state nitrate doped polypyrrole (PPy(NO3−) ion-selective electrode (ISE) was prepared with a nanohybrid composite film of gold nanoparticles (AuNPs) and electrochemically reduced graphene oxide (ERGO). Preliminary tests on the ISE based in-situ soil nitrate–nitrogen (NO3−-N) monitoring was conducted in a laboratory 3-stage column. Comparisons were made between the NO3−-N content of in-situ soil percolate solution and laboratory-prepared extract solution. Possible influential factors of sample depth, NO3−-N content, soil texture, and moisture were varied. Field-emission scanning electron microscopy (FESEM) and X-ray powder diffraction (XRD) characterized morphology and content information of the composite film of ERGO/AuNPs. Due to the performance excellence for conductivity, stability, and hydrophobicity, the ISE with ERGO/AuNPs illustrates an acceptable detection range from 10−1 to 10−5 M. The response time was determined to be about 10 s. The lifetime was 65 days, which revealed great potential for the implementation of the ERGO/AuNPs mediated ISE for in-situ NO3−-N monitoring. In-situ NO3−-N testing results conducted by the all-solid-state ISE followed a similar trend with the standard UV-VIS method.

scholarly journals An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO3 as a Sensitive Membrane

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 525
Author(s):  
Rongrong Wu ◽  
Xue-Gang Chen ◽  
Chunhui Tao ◽  
Yuanfeng Huang ◽  
Ying Ye ◽  
...  
Keyword(s):  
Solid State ◽  
Emerging Technology ◽  
In Situ Monitoring ◽  
Ion Selective Electrode ◽  
Aqueous Environment ◽  
Selective Electrode ◽  
Multiple Parameters ◽  
Potentiometric Response ◽  
Interfering Ions

Ion-Selective Electrode (ISE) is an emerging technology for in situ monitoring of the chemical concentrations of an aqueous environment. In this work, we reported a novel all-solid-state silicate ISE, using an Ag/Pb/PbSiO3 electrode. This electrode responded to aqueous SiO32− with a reasonable slope of −31.34 mV/decade and a good reproductivity. The linear range covered from 10−5 M to 10−1 M, for the Na2SiO3 solutions and the response time was generally less than 5 s. Its potentiometric response to pH and silicate indicated that the prepared electrode was sensitive to silicate, rather than pH. Compared to the traditional liquid ISE, our all-solid-state silicate electrode was resistant to high pressure and could be used in situ, in deep water. In addition, the miniaturized electrodes (diameter of 0.4 mm and a length of 2–3 cm) could be easily integrated into a multi-modal sensor, which could simultaneously determine multiple parameters. Our prepared silicate ISE could potentially be used to determine the presence of silicate in a low-chloride aqueous environment, where the ISE exhibited better selectivity for silicate, over interfering ions such as, SO42−, NO3−, CH3COO−, CO32−, and PO43−.

scholarly journals Statistical generation of training sets for measuring NO3−, NH4+and major ions in natural waters using an ion selective electrode array

2016 ◽  
Vol 18 (5) ◽  
pp. 590-599 ◽  
Author(s):  
Amy V. Mueller ◽  
Harold F. Hemond
Keyword(s):  
Signal Processing ◽  
Natural Waters ◽  
Major Ions ◽  
Electrode Array ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Environmental Systems ◽  
Training Sets

Knowledge of the statistics of environmental systems combined with novel signal processing can significantly improve the utility of existing sensors forin situmeasurements of key nutrients.

Development of in situ Imaging Probe for Surgical Operation of Deep Brain Stimulation

2011 ◽  
Vol 131 (12) ◽  
pp. 427-428
Author(s):  
Toshihiko Noda ◽  
Pan Yi-Li ◽  
Ayato Tagawa ◽  
Takuma Kobayashi ◽  
Kiyotaka Sasagawa ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Surgical Operation ◽  
Imaging Probe ◽  
Deep Brain ◽  
In Situ Imaging
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