Photo Gallery

Login

Search

News & Updation

  • Updated Version
  • WJPPS introducing updated version of OSTS (online submission and tracking system), which have dedicated control panel for both author and reviewer. Using this control panel author can submit manuscript
  • Call for Paper
    • WJPPS  Invited to submit your valuable manuscripts for Coming Issue.
  • Journal web site support Internet Explorer, Google Chrome, Mozilla Firefox, Opera, Saffari for easy download of article without any trouble.
  •  
  • WJPPS Impact Factor
  • Its our Pleasure to Inform you that WJPPS Impact Factor has been increased from  7.454 to 7.632  due to high quality Publication at International Level

  • ICV
  • WJPPS Rank with Index Copernicus Value 84.65 due to high reputation at International Level

  • WJPPS JUNE ISSUE PUBLISHED
  • JUNE 2020 Issue has been successfully launched on 1 June 2020.

Abstract

CRYOGENIC MEASUREMENT OF VOLATILE ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY

*Yash Gandhi, Hiral Panchal

Department of Quality Assurance, Arihant School of Pharmacy & BRI, Adalaj, Gandhinagar, Gujarat, India.

ABSTRACT

Cryogenic measurement of gas chromatography was easily adapted by cryogenic trap or sorbent trap for preconcentrating ambient level of volatile organic compounds which include automated GC FID system. In second GC system porous layer open tubular column of Al2O3/ KCl is used. In valve system 3-, 4- & 6-port valve & pneumatic bellows valve are used. In cryogenic free concentration system for VOCís (volatile organic compounds) a Kleemenko cooler is used to create liquid nitrogen trapping conditions & to eliminate the use of the solid absorbents, potential source of artifacts. Concentrator system has 8 port stream select valve, 8 port switching valve, one two way & two three way valves, instrumental control & splitter box. In cryogenic preconcentration system FID (flame ionization detector) Tenax adsorption & GC/MS is used for determination of volatile organic compounds. In FID (flame ionization detector) the sample is injected into hydrogen rich flame & resulting ion fragments are detected. In cryogenic trapping of carbonyl sulfide moderate trapping temperatures down to about -60įC can be achieved using relatively simple electronic devices or mixtures of ice and various salts. Most trapping techniques for which lower temperatures are required make use liquified inert gases, such as argon and nitrogen. Here Cold trap interface, Cryotiger refrigerator & analytical system is used.

Keywords: Cryogenic measurement; Volatile organic compounds; Non methane organic compounds; FID (flame ionization detector)


[Full Text Article]

Call for Paper

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More

Online Submission

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More

Email & SMS Alert

World Journal of Pharmacy and Pharmaceutical Sciences (WJPPS)
Read More