Laser microprobe mass spectrometer

A laser microprobe mass spectrometer (LMMS), also laser microprobe mass analyzer (LAMMA), laser ionization mass spectrometer (LIMS), or laser ionization mass analyzer (LIMA)[1] is a mass spectrometer that uses a focused laser for microanalysis.[2][3][4] It employs local ionization by a pulsed laser and subsequent mass analysis of the generated ions.

Methods

In laser microprobe mass analysis, a highly focused laser beam is pulsed on a micro sample usually with a volume of approximately 1 microliter. The resulting ions generated by this laser are then analyzed with time-of-flight mass spectrometry to give composition, concentration, and in the case of organic molecules structural information.

Unlike other methods of microprobe analysis which involve ions or electrons, the LMMS microproble fires an ultraviolet pulse in order to create ions.

Advantages

LMMS is relatively simple to operate compared to other methods. Furthermore, its strengths include its ability to analyze biological materials to detect certain compounds (such as metals or organic materials).

Sample preparation

LAMMA is particular about the sample which is used. The sample must be small and thin. Ionization of too much material results in a large microplasma whose time spread and ion energy distribution entering the mass spectrometer can result in undesired peak deformation.

See also

References

  1. ^ Sabine Becker (28 February 2008). Inorganic Mass Spectrometry: Principles and Applications. John Wiley & Sons. pp. 154–. ISBN 978-0-470-51720-8.
  2. ^ Hillenkamp, F.; Unsöld, E.; Kaufmann, R.; Nitsche, R. (1975). "A high-sensitivity laser microprobe mass analyzer". Applied Physics. 8 (4): 341–348. Bibcode:1975ApPhy...8..341H. doi:10.1007/BF00898368. ISSN 0340-3793.
  3. ^ Denoyer, Eric.; Van Grieken, Rene.; Adams, Fred.; Natusch, David F. S. (1982). "Laser microprobe mass spectrometry. 1. Basic principles and performance characteristics". Analytical Chemistry. 54 (1): 26–41. doi:10.1021/ac00238a001. ISSN 0003-2700.
  4. ^ Van Vaeck, L (1997). "LASER MICROPROBE MASS SPECTROMETRY: PRINCIPLE AND APPLICATIONS IN BIOLOGY AND MEDICINE". Cell Biology International. 21 (10): 635–648. doi:10.1006/cbir.1997.0198. ISSN 1065-6995.

Read other articles:

Prisma Sanherib

Untuk prisma optik Taylor, lihat Prisma Glan–Taylor. Prisma Taylor, foto oleh David Castor. Prisma Sanherib adalah sejumlah prasasti tanah liat berbentuk tabung bersegi, yang memuat riwayat perbuatan raja Sanherib (Sennacherib's Annals) yang terkenal karena mengepung Yerusalem pada zaman pemerintahan raja Hizkia. Peristiwa ini dicatat di beberapa kitab dalam Alkitab Ibrani dan Perjanjian Lama di Alkitab Kristen termasuk: Kitab Yesaya pasal 36 dan 37, Kitab 2 Raja-raja 18 dan 19, serta Kitab...

 

 

HMCS Ville de Québec (FFH 332)

Royal Canadian Navy frigate For other ships with the same name, see HMCS Ville de Québec. HMCS Ville de Québec in September 2016 History Canada NameVille de Québec NamesakeQuebec City, Quebec BuilderMIL-Davie Shipbuilding, Lévis-Lauzon Laid down16 December 1988 Launched16 May 1991 Commissioned11 July 1994[1] HomeportCFB Halifax IdentificationMMSI number: 120477000 MottoDon de Dieu feray valoir (I will be worthy[1]) Nickname(s)VDQ Honours andawardsAtlantic 1942–1944, Gulf...

 

 

A Quiet Place: Part II

A Quiet Place: Part IISutradaraJohn KrasinskiProduser Michael Bay Andrew Form Brad Fuller John Krasinski Ditulis olehJohn KrasinskiBerdasarkanTokoh oleh Bryan Woods dan Scott BeckPemeran Emily Blunt Millicent Simmonds Noah Jupe Cillian Murphy Djimon Hounsou Penata musikMarco BeltramiSinematograferPolly MorganPenyuntingMichael P. ShawverPerusahaanproduksi Platinum Dunes[1] Sunday Night Productions[1] DistributorParamount PicturesTanggal rilis 8 Maret 2020 (2020-03-08...

Murray

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Februari 2023. Murray adalah nama keluarga dan nama depan. Orang-orang terkenal dengan nama keluarga dan nama depan meliputi: Murray Edelman, pakar komunikasi Charles Murray (pemeran Amerika Serikat), aktor film Amerika James Murray (pemeran Amerika Serikat), aktor ...

 

 

Koblenz, Swiss

Untuk tempat lain yang bernama sama, lihat Koblenz. Koblenz Lambang kebesaranKoblenz Location of Koblenz Templat:Infobox Swiss town/mapTampilkan peta SwissKoblenzKoblenz (Canton of Aargau)Tampilkan peta Canton of AargauKoordinat: 47°37′N 8°14′E / 47.617°N 8.233°E / 47.617; 8.233Koordinat: 47°37′N 8°14′E / 47.617°N 8.233°E / 47.617; 8.233NegaraSwissKantonAargauDistrikZurzachLuas[1] • Total4,08 km2 (1,58...

 

 

Javi Fuego

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Desember 2023. Javi Fuego Informasi pribadiNama lengkap Javier Fuego MartínezTanggal lahir 4 Januari 1984 (umur 40)Tempat lahir Pola de Siero, SpanyolTinggi 1,81 m (5 ft 11+1⁄2 in)Posisi bermain Gelandang bertahanInformasi klubKlub saat in...

Abhedananda Mahavidyalaya

College in West Bengal Abhedananda MahavidyalayaMain gate of Abhedananda MahavidyalayaTypeUndergraduate college Public collegeEstablished1965; 59 years ago (1965)FounderThakur Sri Satyananda DevAffiliationUniversity of BurdwanPresidentSri Debasish SahaAddressCollege Rd, Muradihi P, Sainthia, West Bengal, 731234, India23°56′55″N 87°41′38″E / 23.9486724°N 87.6939869°E / 23.9486724; 87.6939869CampusUrbanWebsiteAbhedananda MahavidyalayaLocatio...

 

 

Toyota Motor Kyushu

Toyota Motor Kyushu, Inc.Nama asliトヨタ自動車九州株式会社Nama latinToyota Jidōsha Kyūshū Kabushiki-gaishaJenisSubsidiaryIndustriAutomotifDidirikan8 Februari 1991; 33 tahun lalu (1991-02-08)KantorpusatMiyawaka, JepangTokohkunciOsamu Nagata (Presiden)ProdukMobil, mesin, sistem hibridProduksi 363.365 mobil (FY2021)Pendapatan ¥1.165,64 milyar (FY2021)Laba operasi ¥14,56 milyar (FY2021)Laba bersih ¥10,28 milyar (FY2021)Total aset ¥328,15 milyar (FY...

 

 

Синелобый амазон

Синелобый амазон Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеНадкласс:ЧетвероногиеКлада:АмниотыКлада:ЗавропсидыКласс:Пт�...

Mathematical object

Anything with which mathematical reasoning is possible This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (June 2009) (Learn how and when to remove this message) Schlegel wireframe 8-cell A mathematical object is an abstract concept arising in mathematics. In the usual language of mathematics, an object is anything that has been (or could be) formally defined, an...

 

 

Citadelle of Quebec

Building in Quebec, Canada Citadelle of QuebecLa Citadelle de Québec (French)General informationLocationQuebec City, Quebec, CanadaCoordinates46°48′27″N 71°12′26″W / 46.8074°N 71.2071°W / 46.8074; -71.2071Construction started1820 to 1850Cost200 000 sterling pounds, 60 000 estimated in 1816ClientThe Crown of France (1693, 1701, 1745, 1750)The Crown of Great Britain and Ireland (1820, 1831, 1842)The Crown in Right of Canada (1872)OwnerThe King in Right ...

 

 

Passeport diplomatique agent K 8

1965 French filmPasseport diplomatique agent K 8Film posterDirected byRobert VernayWritten byMaurice Dekobra (novel)Solange Térac (dialogue)CinematographyPaul SoulignacMusic byRaphaël BiondiRelease date 1965 (1965) CountriesFranceItalyLanguageFrench Passeport diplomatique agent K 8/Operation Diplomatic Passport is a 1965 French and Italian spy film thriller directed by Robert Vernay. It was based on the 1959 novel by Maurice Dekobra. Cast Roger Hanin as Mirmont Christiane Minazzoli as ...

International Helsinki Federation for Human Rights

This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: International Helsinki Federation for Human Rights – news · newspapers · books · scholar · JSTOR (January 2008) (Learn how and when to remove this message) The International Helsinki Federation for Human Rights (IHF) was a self-governing group of non-governmental organizations that acted to protect human r...

 

 

الانتخابات العامة في البوسنة والهرسك 1998

الانتخابات العامة في البوسنة والهرسك 1998 البلد  البوسنة والهرسك التاريخ 12 سبتمبر 1998،  و13 سبتمبر 1998  الانتخابات العامة في البوسنة والهرسك 1996    عدد الناخبين 2,048,320 عدد الأصوات المرفوضة 182,627 عدد الأصوات المقبولة 1,865,693 منصب عضو مجلس نواب البوسنة والهرسك  [لغات ...

 

 

Vallinfreda

Vallinfredacomune Vallinfreda – VedutaVista di insieme della chiesa parrocchiale di San Michele Arcangelo e del palazzo Bencivenga. LocalizzazioneStato Italia Regione Lazio Città metropolitana Roma AmministrazioneSindacoFilippo Sturabotti (lista civica Uniti per Vallinfreda) dal 4-10-2021 TerritorioCoordinate42°05′N 12°58′E42°05′N, 12°58′E (Vallinfreda) Altitudine874 m s.l.m. Superficie16,72 km² Abitanti290[1] (31-8-2020) Densi...

Laboratory

Workplace for scientific activity The Schuster Laboratory, University of Manchester (a physics laboratory) A laboratory (UK: /ləˈbɒrətəri/; US: /ˈlæbrətɔːri/; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratories are found in a variety of settings such as schools, universities, privately owned research institutions, corporate research and testing facilities, gover...

 

 

November 2023 Ohio Issue 1

Referendum to enshrine abortion and contraception in the state constitution Issue 1 November 7, 2023 (2023-11-07) Right to Reproductive Freedom with Protections for Health and Safety[1]Results Choice Votes % Yes 2,227,384 56.78% No 1,695,480 43.22% Total votes 3,922,864 100.00% County resultsCongressional district resultsYes:      50–60%      60–70%      70–80%      ...

 

 

Carlos Pachamé

Questa voce sugli argomenti allenatori di calcio argentini e calciatori argentini è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti dei progetti di riferimento 1, 2. Carlos PachaméPachamé nel Estudiantes LPNazionalità Argentina Altezza172 cm Peso73 kg Calcio RuoloAllenatore (ex centrocampista) CarrieraSquadre di club1 1963-1971 Estudiantes (LP)[1]1972-1973 Boca Juniors71 (2)1974-1976 Estudiantes (LP)27...

CD Aurrerá Ondarroa

Spanish football team Not to be confused with CD Aurrerá de Vitoria. Football clubAurrerá OndarroaFull nameClub Deportivo Aurrerá OndarroaFounded1921GroundZaldupe, Ondarroa,Basque Country, SpainCapacity1,000PresidentEladino GonzálezHead coachXepe GallasteguiLeagueDivisión de Honor2023–24Tercera Federación – Group 4, 17th of 18 (relegated) Home colours Away colours Club Deportivo Aurrerá Ondarroa (Ondarroako Aurrera Kirol Elkartea in Basque) is a Spanish football team based in Ondar...

 

 

Néstor Gorosito

Néstor GorositoGorosito nel 2010Nazionalità Argentina Altezza175 cm Peso70 kg Calcio RuoloAllenatore (ex centrocampista) Squadra Tigre Termine carriera2001 - giocatore CarrieraGiovanili ?-1983 River Plate Squadre di club1 1983-1988 River Plate105 (7)1988-1989 San Lorenzo37 (21)1989-1992 Swarovski Tirol56 (16)1992-1994 San Lorenzo68 (11)1994-1995 Universidad Católica58 (13)1996 Yokohama Marinos6 (3)1997-1999 San Lorenzo99 (29)1999-2001 ...