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Acetylation ofp-Aminophenol by Preyssler's anion [NaP5W30O110]14-, [NaP5W29MoO110]14-with green condition at room temperature

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Gharib A., Scheeren J., Bamoharram F., Roshani M., Jahangir M.
Polish Journal of Chemical Technology
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2009
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vol. 11
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issue 2
31-35
EN
Synthesis of acetaminophen at green condition and room temperature in the presence of the Preyssler type heteropolyacids has been investigated in order to contribute toward clean technology, which is the most important need of the society. All of the catalysts are recyclable and reusable.
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Acute pancreatitis after nifedipine and acetaminophen poisoning - case report

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Sorodoc L., Lionte C., Bologa C., Petris O., Sorodoc V., Buga C.
Open Medicine
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2009
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vol. 4
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issue 4
527-531
EN
The incidence of drug-induced pancreatitis is rare. There have been several reports of acute pancreatitis as a complication in acute poisoning with drugs or toxins. We present a case of a young woman with acute pancreatitis secondary to an overdose of nifedipine and acetaminophen in a suicide attempt. We excluded other causes of acute pancreatitis by clinical history, serum toxicology, serology, and abdominal imaging. The most likely underlying pathophysiological mechanism was ischemic injury of the pancreas secondary to severe collapse induced by nifedipine and possible acetaminophen-induced direct pancreatotoxicity. The pancreatitis resolved with treatment that included continuous veno-venous haemofiltration in an intensive care unit. Emergency and intensive care units should be aware of this unusual complication of such poisoning. To our knowledge, this is the first reported association between massive nifedipine overdose and acute pancreatitis.
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Screen-printed electrodes modified with HRP-zirconium alcoxide film for the development of a biosensor for acetaminophen detection

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Sima V., Cristea C., Bodoki E., Duţu G., Sāndulescu R.
Open Chemistry
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2010
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vol. 8
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issue 5
1034-1040
EN
The development of a biosensor based on the immobilization of horseradish peroxidase (HRP) within a zirconium alkoxide-polyetilenimine film onto screen-printed electrodes (SPE) for acetaminophen detection and acetaminophen quantification in pharmaceutical products is described. The biosensor operation mode is based on monitoring the amperometric signal produced by the electrochemical reduction of the enzymatically generated electroactive oxidized species of acetaminophen in the presence of hydrogen peroxide. The enzyme immobilization is performed by retention in a polyethylenimine-zirconium alcoxide porous gel film, a technique that offers good entrapping and a protective environment for the biocomponent due to the hydration properties of the immobilization layer. SPEs have the advantage of being easily mass-produced at low costs with superior characteristics in comparison with classical electrode materials. In this configuration, zirconium alkoxide demonstrates its electrocatalytic activity. The biosensor allows the quantification of acetaminophen with a limit of detection of 6.21×10−8 M and a linear range between 4.35×10−7 M and 4.98×10−6 M. Finally, the biosensor is applied to the quantitative analysis of acetaminophen in Perdolan® tablets. [...]
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