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An optical sensor for the detection of nitrate


, : An optical sensor for the detection of nitrate. Sensors and Actuators B, Chemical 7(1/3): 473-475

An optical chemical sensor for the selective detection of NO3- ions is described. The sensitive layer consists of a PVC membrane containing a NO3--selective ionophore and a proton-selective (chromo)-ionophore (pH indicator). Transport of NO3- ions into the membrane results in the coextraction of H+ ions. This H+ concn change is measured spectroscopically.

US$19.90

DOI: 10.1016/0925-4005(92)80346-y


Other references

Tiveron, M.C.; Alió Del Barrio, J.L.; Kara-Junior, N.; Plaza-Puche, A.Belén.; Abu-Mustafa, S.K.; Zein, G.; Alió, J.L., 2017: Outcomes of Toric Iris-Claw Phakic Intraocular Lens Implantation After Deep Anterior Lamellar Keratoplasty for Keratoconus. To assess visual and refractive outcomes of toric iris-claw phakic intraocular lens (IOL) implantation in patients who had previously undergone deep anterior lamellar keratoplasty (DALK). Retrospective case series including 24 eyes of 24 patients...

Bernasconi, G., 2008: P- and S-wave migration of while drilling data. I investigate some aspects of multicomponent processing in seismic while drilling (SWD) acquisitions. I start from the consideration that a working roller cone is a good source of both P- and S-waves. Then, by examining the radiation pattern of th...

Krook Leendert, 1970: Climate and sedimentation in the Guianas. Latest glacial and Holocene times, sedimentologic and botanic indicators.

Nath, A.; Wolinsky, J.S.; Kerman, R.H., 1989: Effect of cyclosporine on rubella virus-specific immune responses in chronic progressive multiple sclerosis. Cyclosporine A (CsA) has been used in putative autoimmune diseases after sensitization to unknown antigens. We have previously shown that CsA prevented continued activation of T-cells in chronic progressive multiple sclerosis (CPMS) patients. The...

Leighton, B.C., 1968: The British Society for the study of Orthodontics. British Dental Journal 124(9): 425-428

Shi NongNong; Chen JianPing; Adams, M.J., 1999: Molecular variations of Chinese isolates of barley yellow mosaic bymovirus. DNA fragments amplified from the bipartite genome of 13 Chinese and UK isolates of barley yellow mosaic virus (BaYMV) by RT-PCR were analysed by single-strand conformation polymorphism (SSCP). Variations in the coat protein gene and the 5'-te...

Bragdon, C.R.; Thanner, J.; Greene, M.E.; Malchau, H.; Digas, G.; Harris, W.H.; Kärrholm, J., 2006: Standing versus supine radiographs in RSA evaluation of femoral head penetration. Evaluation of polyethylene acetabular component wear in total hip arthroplasties commonly is performed using serial radiographs of the hip by measuring the change in the location of the center of the femoral head in relation to the acetabular comp...

Kretschmer, W.; Schonleber, B., 1954: The value of clinical examinations of respiratory blood circulation abnormalities. Die Medizinische 52: 1757-1759

Hardman, G.L., 1953: On getting better results from the service afloat x-ray unit. Journal of the Royal Naval Medical Service 39(1): 36-39

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