服務熱線
15201163601
-
賽默飛氣質聯用儀常見的接口技術有哪些？
發布時間： 2022-07-26 點擊次數： 866次賽默飛氣質聯用儀是指將氣相色譜儀和質譜儀聯合起來使用的儀器。質譜法可以進行有效的定性分析，但對復雜有機化合物的分析就顯得無能為力；而色譜法對有機化合物是一種有效的分離分析方法，特別適合于進行有機化合物的定量分析，但定性分析則比較困難。因此，這兩者的有效結合必將為化學家及生物化學家提供一個進行復雜有機化合物高效的定性、定量分析工具。像這種將兩種或兩種以上方法結合起來的技術稱之為聯用技術。目前本產品被廣泛應用于復雜組分的分離與鑒定，其具有GC的高分辨率和質譜的高靈敏度，是生物樣品中藥物與代謝物定性定量的有效工具。質譜儀的基本部件有：三部分組成，它們被安放在真空總管道內。接口：由GC出來的樣品通過接口進入到質譜儀，接口是氣質聯用系統的關鍵。賽默飛氣質聯用儀常見接口技術：1、分子分離器連接：擴散型——擴散速率與物質分子量的平方成反比，與其分壓成正比。當色譜流出物經過分離器時，小分子的載氣易從微孔中擴散出去，被真空泵抽除，而被測物分子量大，不易擴散則得到濃縮。2、直接連接法：在色譜柱和離子源之間用長約50cm，內徑0.5mm的不銹鋼毛細管連接，色譜流出物經過毛細管全部進入離子源，這種接口技術樣品利用率高。3、開口分流連接：該接口是放空一部分色譜流出物，讓另一部分進入質譜儀，通過不斷流入清洗氦氣，將多余流出物帶走。此法樣品利用率低。
產品中心
Products
-
化學試劑
Origene parkell pan-biotech PAN lexogen Lampire labtidebiotech laborator labome ABI enzolifesciences emsdiasum EtonBioscience Equitech-bio kirgen invivogen integralmolecular Instech IndoorBiotechnologies INCELL IMMUSMOL G-Biosciences IMMUNOLOGICALS idtdna IMMUNODX ILLUMINA Immunodiagnostics IBALifeSciences Hypoxyprobe Horizon Cygnus Technologies Hellobio Greiner Cell Signaling Glycobiotech Corning FST Evrogen eurofins BioFire Defense biodatacorp atlasantibodies ATCC Astartebio ArcticZymes aobious anshlabs Advanced ChemTech Advaced Cell Diagnostics AdvanDx Agar Scientific ACBR TRc polyscience Fluka Gene Bridges fortebio Biocrick Fisher bioflux biomax beckman AmericanElements MOLTOX Permagen USA Scientific Chemgenes寡核苷酸 Asuragen vmrd抗體 Thermo asusragen AmplideX toxin polyplus signagen Berry&Associates ALZET滲透泵 alzet abcr abvector SGI-DNA Goldbio Iduron Sgidna Chromsystems Coriell GE Chemgenes Matreya Streck VMRD Sigma Cerilliant Innovative Cell Technologies Diagenode Trilinkbiotech Medkoo life diagnostics Gibco Neuromab全國總代 Novus BioLegend Bethyl Toxin Technology Listlabs Seracare 寶利嘉 賽默飛 安迪生物 行業專用試劑
-
生物試劑
Biosharp Sciex Seahorse Proteintech DiaMag complementtech PeproTech hooke Nzytech Pierce pepnet pelfreez PALL ozbiosciences OXOID ORFLO ommscientific omega nanopore ncbi NexcelomBioscience Mpbio MultiSciences MyBioSource Musechem MiltenyiBiotec minerva-biolabs microspheres-nanospheres microfil microbix modiquestresearch MOBITEC mercodia merckmillipore medicago JPT kerafast Kangchen Malvern magen Kapa Macrocyclics Macherey mabtech Lucigen leica Lifespan lifesensors lifeline life-ilab Lifecore life Licor advancedchemtech Affinity Abgent Abmgood ActiveMotif Acros Acrobiosystems enzymatics epicypher Elastin elabscience Echelon eBioscience eastcoast eaglebio E&K SCIENTIFIC ekfusa duran DSHB Dharmacon DGRC Dako Cypex comptech Encorbio Jetbiofil JCRBcellbank ISOSCIENCES INVIVOCHEM iris-biotech Full Moon BioSystems GBI FormnMax Finescience Favorgen CordenPharma CIL Chromadex Clodronateliposomes Chromogenix Chiron chemservice cellvis cellutron CELLTREAT cellscript cellbiolabs cellecta cedarlane cdnisotopes carbosynth cambio calbioreagents Buchem Boston Cellron Bioworld Biowest Biotium biostatus BiosPacific Biosearch BIOplastics Biooscientific BioPAL Biomol BIOMED Biomatik bioline Biocoat Bioclone Biocision biochain華新康信 biocell Biocare BIAseparations BDpharmingen Baseclick Badrilla B2S Life Sciences Axon Medchem AXIS-SHIELD avivasysbio avidity AVES-LABS Anatrace Americanbio AlphaDiagnoesticInternational Applied Genetics Laboratories Alstem Alomone AcceGen Akina AdvancedBioMatriX Adipogen Accuratechemical Academybiomed Abcam Zymo Research Addexbio ABL Abbexa Aablocks ZeptoMetrix Tocris TAKARA Spherotech Santa Roche Nist PBL MRC Holland rd-biotech Cellgs LC-LAB Greatcell Energy Hyclone Greerlabs GlycoSyn GlycoTech EY laboratories Cayman CanSyn Bioxcell Bio－Rad Agdia Abclonal amsbio auditmicro avantilipids Alsachim HTDialysis jetPRIME Carna Biosciences FItzgerald