Picrate ion determination using a potentiometric sensor immobilized in a graphite matrix

Moghimi, Majid; Arvand, Majid; Javandel, R.; Zanjanchi, Mohammad Ali

doi:10.1016/j.snb.2004.10.015

Cited by 6 publications

(1 citation statement)

References 37 publications

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“…Histamine [265], histidine [266], imidazole [267,268], ketamine [269], ascorbic acid [270], oxalate [271], triamterene [272], naphazoline [273], valproate [274], cystein [275], theophiline [276], sulfosalicylic acid [277], thiosalicylic acid [278], salicylate [279,280], ketoconazole [281], clotrimazole [282], cimetidine [283], diclofenac [284], atenolol [285], picrate [286], linear alkylbenzene sulfonate [287,288], sodium dodecylsulfate [289][290][291], dodecylbenzene sulfonate [292] aresepecies the sensors of which have been introduced by Iranian researchers.…”

Section: Selective Electrodes For Drugs and Organic Speciesmentioning

confidence: 99%

One decade of research on ion-selective electrodes in Iran (1996–2006)

Ganjali

Norouzi

Faridbod

et al. 2007

JICS

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This review presents a general overview about the development of ion-selective electrodes in Iran during the past decade (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006). All of the reported ion-selective sensors (for cations, anions and organic species) are cited in this review. Sensors for 39 cations, 12 anions, and 23 organic compounds and drugs have been reported in this reivew. Some of the main group cations (e.g. beryllium) as well as most of the lanthanide ion (i.e., presidium, erbium, lutetium, cerium, neodymium, europium, gadolinium, terbium, dysprosium, holmium, ytterbium, and thulium) sensors have been reported for the first time. It is noticable that the best reported sensors for HPO 4 2-, SO 4 2-, Cl -, ClO 4 -, Br -, and I 3 -have been designed and constructed by the Iranian researchers.

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Section: Selective Electrodes For Drugs and Organic Speciesmentioning

confidence: 99%

One decade of research on ion-selective electrodes in Iran (1996–2006)

Ganjali

Norouzi

Faridbod

et al. 2007

JICS

View full text Add to dashboard Cite

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New Potentiometric Sensors for Picrate Determination Using Flow‐Through System: Application to Kinetic Assessment of Se(IV)

et al. 2013

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Two new selective and sensitive poly(vinyl chloride) membrane sensors are developed for measuring picrate ions based on the use of nitron picrate [(Nit)(Pic)] and iron(II)‐bathophenanthroline picrate [Fe(bphen)3)(Pic)2] ion pairs in plasticized poly(vinyl chloride) membrane. The sensors display Nernstian response with slopes of −57.2±0.8 and −58.8±0.5 mV decade−1 over the range of 3.0×10−5 to −1.0×10−2 and 4.6×10−6–1.0×10−2 mol L−1 and detection limits of 7.4×10−6 and 3.07×10−6 mol L−1 for [(Nit)(Pic)] and [Fe(bphen)3)(Pic)2] membrane‐based sensors, respectively. The sensors exhibit long life‐span, long term potential stability, high reproducibility, fast response and good discrimination ability towards picrate ions in comparison with many other anions. A tubular detector based on [Fe(bphen)3][Pic]2 was further developed and coupled to a flow‐injection system for picrate (Pic) determination. Under optimized conditions, the linearity range is 1.0×10−5–1.0×10−1 mol L−1, with a slope of −47.9±0.1 mV decade−1 and a reproducibility of ±0.3 mV (n=5). The sensor is utilized for a kinetic quantification of selenium in pharmaceutical preparations. The alkaline solution of picrate is allowed to react in a batch system with Na2S, in the presence of selenium(IV) as a catalyst. The changes in potential, resulting from the decrease of the picrate anions are monitored with the picrate sensor. The calibration curve of Se is linear in the concentration range 0.14–0.7 µg mL−1, with a lower limit of detection of 1.0 ng mL−1.

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