Peroxides detecting

Lodge, J.K., Patel, S.U. and Sadler, P.J. (1993). Aldehydes from metal ion- and lipoxygenase-induced lipid peroxidation detection by H-n.m.r. spectroscopy. Biochem. J. 289, 149-153. 

Glucose enzyme electrode based on peroxide detection [6]... 

V. Lvovich and A. Scheeline, Amperometric sensors for simultaneous superoxide and hydrogen peroxide detection. Anal. Chem. 69, 454-462 (1997). 

The analytical performance of Prussian blue-modified electrodes in hydrogen peroxide detection were investigated in a flow-injection system equipped with a wall-jet cell. Nano-structured Prussian blue-modified electrodes demonstrate a significantly decreased background, which results in improved signal-to-noise ratio. 

FIGURE 13.6 Calibration plot for hydrogen peroxide detection in flow-injection mode with nano-struc-tured Prussian blue as a detector Prussian blue electrodeposited through sol template based on the vinyltri-ethoxysilane, operating potential 50 mV, phosphate buffer pH 6.0 + 0.1M KC1, flowrate 0.7ml/min. 

A.A. Karyakin and E.E. Karyakina, Prussian Blue-based artificial peroxidase as a transducer for hydrogen peroxide detection. Application to biosensors. Sens. Actuators, B B57, 268-273 (1999). 

P.A. Fiorito and S.I.C. de Torresi, Hybrid nickel hexacyanoferrate/polypyrrole composite as mediator for hydrogen peroxide detection and its application in oxidase-based biosensors. J. Electroanal. Chem. 581, 31 (2005). 

Based on the reaction of luminol and hydrogen peroxide, detection by electrogenerated CL (ECL) was also applied in CE [85], In this detection technique, which has been used until now in LC and in FIA, the production of light is followed by an oxidation or reduction reaction at an electrode that serves the... 

These halides can be used for the preparation of large macrocycles as the reactions in Scheme 28 indicate. In contrast, oj-hydroxyal kyl tetrall uorostannatcs are obtained from stannacycloalkanes by rapid oxidation via an intermediate peroxide, detected by polaro-graphic analysis, followed by cleavage of the Sn—Ph bonds353 (Scheme 29). 

Using the article by Kelly (see Table 13-2), describe the commonly used peroxide detection methods. 

Tkac J, Ruzgas T (2006) Dispersion of single walled carbon nanotubes. Comparison of different dispersing strategies for preparation of modified electrodes toward hydrogen peroxide detection. Electrochemistry Communications 8 899-903. 

Detection of TATP in the field has been problematic. Technologies have been developed that focus on the peroxide group. Of these tests, the most commonly available are field detection kits that rely on color changes brought on by chemical reactions. Mistral s PDK (Peroxide Detection Kit) offers chemical screening... 

Peroxide detection bit Provisional Irish Republican Army Photoluminescence Soviet Block antipersonnel mines Polydimethylsiloxene (polymer used to concentrate explosive molecules)... 

CA040 Long, L. H. and B. Halliwell. Coffee drinking increases levels of urinary hydrogen peroxide detected in healthy human volunteers. Free Radical Res 2000 32(5) 463-467. CA050... 

ChemZtg 51, 981-83(1927) CA 22, 869(1928) (Expln of Ether contg Peroxide detection removal of peroxide) 3) R. Robertson,... 

Ethyl ether [60-29-7] M 74.1, b 34.6 /760mm, d 0.714, n s 1.3555, n 1.35272. Usual impurities are water, EtOH, diethyl peroxide (which is explosive when concentrated), and aldehydes. Peroxides [detected by liberation of iodine from weakly acid (HCl) solutions of KI, or by the blue colour in the ether layer when Img of Na2Cr2O7 and 1 drop of dil H2SO4 in 1ml of water is shaken with 10ml of ether] can be removed in several different ways. The simplest method is to pass dry ether through a column of activated alumina (80g AbOa/VOOml of ether). More commonly, IL of ether is shaken repeatedly with 5-lOml of a soln comprising... 

Oglialoro modification of, 708 Perkin triangle, 108, 218f Kon modification of, 109 Peroxides, detection of, in ether, 163 removal from diethyl ether, 163 removal from isopropyl alcohol, 886 Petroleum ether, purification of, 174 Phenacetin, 996, 997 1 10-Phenanthroline, 991, 992 p-Phenetidine, 997, 998 Phenetole, 665,670 Phenobarbitone, 1003,1004,1005 Phenol, 595, 613 Phenol aldehyde polymers, 1016 formation of, 1022 Phenolphthalein, 984, 985 action as indicator, 984 ... 

Peroxide detection in organic solvents was previously discussed in Section 4.I.D. It is imperative that solvents suspected of peroxide contamination be tested, since an extreme explosion hazard results when peroxides are concentrated in the still pot during distillation. 

Sensor system for simultaneous oxygen and hydrogen peroxide detection... 

N. Labat-Allietta and D.R. Thevenot, Influence of calcium on glucose biosensor response and on hydrogen peroxide detection, Biosens. Bioelectron., 13 (1998) 19-29. 

The chemical deposition of PB leads to an effective modification of the electrode surface, which then shows positive features as to hydrogen peroxide detection with an effective rate constant very similar to that measured for the peroxidase enzyme (2 x 104 M-1 s-1) [1]. Another major advantage of the chemical deposition is that it involves a more convenient and shorter procedure that avoids long electrochemical procedures during modification [2,3]. Moreover, the chemical deposition gives a more stable PB layer, which is only slightly affected by alkaline pH. 

Lowry JP, O Neill RD. Homogeneous mechanism of ascorbic acid interference in hydrogen peroxide detection at enzyme-modified electrodes. Analytical Chemistry 1992, 64, 453 156. 

Kemer W, Kiwit M, Linke B, Keck FS, Zier H, Pfeiffer EF. The function of hydrogen-peroxide-detecting electroenzymatic glucose electrode is markedly impaired in human subcutaneous tissue and plasma. Biosensors Bioelectronics 1993, 8, 473. 

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