Mass Spectrometry The substance being analyzed (solid or liquid) is injected into the mass spectrometer and vaporized at elevated temperature and reduced pressure. Used to determine. Mass spectrometers have been used in both Pharm.) See our User Agreement and Privacy Policy. <]>> 0000001208 00000 n 0000009861 00000 n The modern techniques of mass spectrometry were devised by Arthur Jeffrey Dempster … 0000001610 00000 n the … 0000001072 00000 n Guided by A CLOSER LOOK ON GC-MS (Gas Chromatography Mass Spectrometry) Presented By Ms. A.A. Bhosale (M. 0000001730 00000 n • Recent developments are focusing on novel primary ion species likeC60or ionized clusters of gold and bismuth Mass Spectrometry Mass spectrometry (MS) is an analytical technique that measures the mass-to-charge ratio of charged particles. Mass Spectrometry: Fragmentation Ethers di-sec-butyl ether O MW = 130 M (130) 115 M-15 101 M-29 O H CH3CH2 O H H3C m/z = 59 m/z = 45 O H H H3C O H H CH3CH2 m/z = 57 analytical method to find the molecular mass of a compound and indirectly helped to prove the identity of isotopes Dr. K. G. Bothara (Ph.D.) Mass Spectrometry (MS) is an analytical chemistry technique that helps identify the amount and type of chemicals present in a sample by measuring the mass-to- charge ratio and abundance of gas-phase ions. Scribd will begin operating the SlideShare business on December 1, 2020 HISTORY: Mass spectroscopy was first performed at the Cambridge university, in 1912 by J.J Thomson (1856-1940) when he obtained the mass spectra of O2, N2, CO. Mass spectroscopy took off in 1930s and advance technology resulted in the development of double focusing Mass spectrometers capable of accurate determination. 90 0 obj<>stream STES’S SINHGAD COLLEGE OF PHARMACY If you continue browsing the site, you agree to the use of cookies on this website. Spectrometry) 0000003270 00000 n We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. xref %%EOF 0000003023 00000 n If you wish to opt out, please close your SlideShare account. 0 Vadgaon(Bk), Pune 411 041. The gaseous molecules are bombarded with high-energy electrons, which convert some of the molecules into positively charged ions. 0000000016 00000 n %PDF-1.6 %���� Gc ms ppt 1. 0000001288 00000 n 0000010574 00000 n 75 16 Purpose of Mass Spectrometry. trailer See our Privacy Policy and User Agreement for details. Clipping is a handy way to collect important slides you want to go back to later. Pharm.) ד,���(����Oj����@�t��-쿤wH�X����9Mկ�������?�N�u\-/&�I�r=M����L�>:�9��gWEHn�o�A�G��eى. Mass Spectrometry. GAS CHROMATOGRAPHY AND MASS SPECTROMETRY (GC-MS) BY P.RAVISANKAR. 0000001654 00000 n 75 0 obj <> endobj As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. Ms. A.A. Bhosale (M. 0000000627 00000 n Guided by Dr. K. G. Bothara (Ph.D.) STES’S SINHGAD COLLEGE OF PHARMACY Vadgaon(Bk), Pune 411 041. 0000001576 00000 n Gas chromatography-mass spectrometry (GC-MS)-an introduction, liquid chromatography - mass spectroscopy (LC-MS), Lesson 17 beginning of evolurionary theories, No public clipboards found for this slide. Courtesy www.lab-initio.com. 1. 0000007192 00000 n Looks like you’ve clipped this slide to already. If you continue browsing the site, you agree to the use of cookies on this website. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Presented By 0000002482 00000 n You can change your ad preferences anytime. Now customize the name of a clipboard to store your clips. Mass Filters in Mass Spectrometry Separations of ions based on properties of mass and charge. 20.1 Mass Spectrometry Fundamentals • general idea behind the instrument • electron impact ionization with an example mass spectrum • block diagram and timing of events within an instrument • isotope effects on a spectrum • determination of a molecular formula • spatial and temporal schemes for tandem mass spectrometry Mass Spectrometry (MS)- Principle, Working, Instrumentation, Steps, Applications. INTRODUCTION Gas chromatography Gas chromatography leads to separation of volatile organic compounds. A CLOSER LOOK ON GC-MS the elemental composition of a sample. 3. startxref 2. PowerPoint Presentation. 0000001418 00000 n (Gas Chromatography Mass Learn more. Produces spectra of masses from the molecules in a sample of material, and fragments of the molecules. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.

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