Böcker av S Raja

Nowadays there is a growth in technology at a faster rate. The corrosion-resistant Hastelloy alloys are widely used by the chemical processing industries. The need for reliable performance leads to their acceptance and growth in the areas of geothermal, solar energy, oil and gas and pharmaceutical. The benefits of Hastelloy process equipment include high resistance to uniform attack, outstanding localized corrosion resistance, excellent stress corrosion cracking resistance, and ease of welding and fabrication.

Atualmente, a tecnologia está a crescer a um ritmo mais rápido. As ligas Hastelloy resistentes à corrosão são amplamente utilizadas pelas indústrias de processamento químico. A necessidade de um desempenho fiável leva à sua aceitação e crescimento nas áreas da geotermia, energia solar, petróleo e gás e farmacêutica. As vantagens do equipamento de processamento Hastelloy incluem uma elevada resistência ao ataque uniforme, uma excelente resistência à corrosão localizada, uma excelente resistência à fissuração por corrosão sob tensão e facilidade de soldadura e fabrico.

Al giorno d'oggi la tecnologia è in rapida crescita. Le leghe Hastelloy resistenti alla corrosione sono ampiamente utilizzate dalle industrie di trasformazione chimica. L'esigenza di prestazioni affidabili ne determina l'accettazione e la crescita nei settori della geotermia, dell'energia solare, del petrolio e del gas e della farmaceutica. I vantaggi delle apparecchiature di processo in Hastelloy includono un'elevata resistenza all'attacco uniforme, un'eccezionale resistenza alla corrosione localizzata, un'eccellente resistenza alla cricca da tensocorrosione e la facilità di saldatura e fabbricazione.

De nos jours, la technologie se développe à un rythme accéléré. Les alliages Hastelloy résistants à la corrosion sont largement utilisés par les industries de traitement chimique. Le besoin de performances fiables conduit à leur acceptation et à leur croissance dans les domaines de la géothermie, de l'énergie solaire, du pétrole et du gaz et de l'industrie pharmaceutique. Les avantages des équipements de traitement en Hastelloy comprennent une résistance élevée à l'attaque uniforme, une résistance exceptionnelle à la corrosion localisée, une excellente résistance à la fissuration par corrosion sous contrainte, ainsi qu'une facilité de soudage et de fabrication.

Heutzutage entwickelt sich die Technologie immer schneller. Die korrosionsbeständigen Hastelloy-Legierungen finden in der chemischen Industrie breite Anwendung. Der Bedarf an zuverlässiger Leistung führt zu ihrer Akzeptanz und ihrem Wachstum in den Bereichen Geothermie, Solarenergie, Öl und Gas sowie Pharmazie. Zu den Vorteilen von Hastelloy-Prozessausrüstungen gehören eine hohe Beständigkeit gegen gleichmäßige Angriffe, eine hervorragende Beständigkeit gegen lokale Korrosion, eine ausgezeichnete Beständigkeit gegen Spannungsrisskorrosion sowie einfache Schweiß- und Fertigungsverfahren.

Naproxen is chemically, (2S)-2-(6-methoxy naphthalen-2-yl) propanoic acid. It is a propionic acid derivative related to the aryl acetic acid group of non-steroidal anti-inflammatory drugs. It is a non-steroidal anti-inflammatory drug (NSAID) commonly used for the reduction of moderate to severe pain, fever, inflammation and stiffness. Esomeprazole is chemically, (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl) methyl]-sulfinyl]-1H-benzimidazole. It is a gastric proton-pump inhibitor (PPI) used in treatment of gastric-acid related diseases. Simple, selective and accurate analytical techniques have been developed and validated for the analysis of Naproxen and Esomeprazole in combined dosage form. The objective of this review is to describe the various analytical methods for the estimation of Naproxen and Esomeprazole in combined dosage form. All methods are validated as per ICH guidelines.