上海乾思生物科技有限公司
中級(jí)會(huì)員 | 第16年

18916423352

細(xì)胞庫(kù)
優(yōu)勢(shì)品牌
Encapsula NanoSciences Quidel Bioporto Salimetrics Research Products International Corp Quanta BioDesign Peninsula Laboratories International Golden West Diagnostics Ocean NanoTech HaemoScan affinitybiologicals Cytodiagnostics Innovagen AB CLIAwaived Svar Abbexa ABMgood AffinityImmuno AGScientific AHF analysentechnik AG Alomone 英國(guó)Antibodies AstaTech Avidity Badrilla BioAcademia Biomatik Biosynth BioTeZ Biotrend Calbiotech CaroteNature Cell Sciences Click Chemistry Tools Cohesion Biosciences CordenPharma Cosmo Bio Creative Biomart Crystal Chem Crystalgen Diagnovum DiaMetra Dianova Diatheva Eagle Manufacturing Echelon Biosciences Edgebio Emfret Epoch Life Science Equitech-Bio Eramask Euro Diagnostica Exocell Fine Science Tools GenwayBio Giotto Biotech Glen Research Glycosynth Gold Biotechnology Golden West Biologicals Haemtech(HTI) Herolab IHC WORLD ImmuChrom GmbH Immunostep Immunotools Immunovision INCELL Corporation Innovative Research Innovrsrch(IRA) Insitus Iris Biotech GmbH Isosep IST Engineering Inc J.G. Finneran Kainos Kamiya Biomedical Labor Diagnostika Nord Larodan Laysanbio Lc laboratories Lee BioSolutions LGC Biosearch Technologies Lifecore List Labs lumiprobe Macrocyclics Medix Biochemica Meridian Life Science Microbix Milenia Biotec Moscerdam Mybiosource Nanoimmunotech Nanoprobes Neuro Probe Paratechs Physitemp Polypure Polysciences Probetex Progen ProScience Inc ProSpec QAbio Qorpak Quanta BioSciences QuickZyme RevMAb Biosciences SCHMIDT BioMedTech Seven Hills Foundation Smartox Biotechnology Spherotech Surgimax Swant SYSY Ted Pella Torpac Trilink USBio VIDIA Ltd ViroStat Virusys VP-scientific Xcessbio XENOMETRIX Zeptometrix ZYTOVISION
自產(chǎn)ELISA試劑盒,試劑盒
進(jìn)口ELISA試劑盒
人細(xì)胞,人細(xì)胞系,人細(xì)胞株
3h biomedical,3H Biomedical AB,3hbiomedical,3-M Company,4adi,4rtilab,5 prime,5prime a & g pharmaceuticals,A&D Weighing,Aalto Scientific,Aalto Scientific ltd,Aalto Scientific,ltd.,aaltobioreagents,aaltoscientific,aat bioquest AAT Bioquest Inc,AB Biolabs,ab peptides,AB Sciex,Abaxis,Abazyme,Abberior,abbexa abbiotec,Abbkine,abbomax,Abbott Molecular,abcam,ABclonal,ABclonal Inc.,abcore-inc abcr GmbH,abcrGmbH,abcysonline,ABD,ABD Bioquest,Inc,abd serotec,ab-direct,abdserotec Abeomics,abfrontier,abgab,abgene,abgent,ABI Applied Biosystems,abiocode,abionline Abkem Iberia,ABL,Inc,Abliance,abm Inc.,abmart,abmgood,Abmole,Abmole Bioscience Inc. abnova,Abraxis,Absolute Antibody,ABT Beads,abt beads technologies,ABTbeads,abvision,Abways abzoom,academy biomed,academy bio-medical,acanthus research,acanthusresearch,ACC,accelagen,Accelagen inc. Access Biologicals,LLC,accessbiologicals,acciusa,accu-chek,AccuDiag Allergy,AccuDiag Anemia,AccuDiag Autoimmune Diseases,AccuDiag Bone Metabolism AccuDiag Thyroid,accumax accutase,Accumetrics,Accurate,accurate chemical,Accurate Wirecraft Company,accuratechemical,accustandard acdbio,Ace Glass,Ace Hose and Rubber Co,ACEA Biosciences,ACL Incorporated,ACME Microspheres Inc,ACMEmicrospheres,acris acris antibodies,Acris Antibodies GmbH,acris-antibodies,ACROBiosystems,acrometrix,acros,Acros Organics,ACT Test Panels LLC actc,actgene,active motif,activemotif,Adam Equipment,Inc,AddexBio,Addexbio Technologies,addgene ademtech,adg,ADI,ADInstruments,adipogen,Adolf Kuhner,adooq,Advance Tabco advanced immunochemical,advanced immunochemical inc,advanced targeting systems,Advansta,Advansta Inc.,Advansta,Inc,Advantech,Advent Electric Inc adventbio,advnt,advtechind,advy chemical,advy chemical Purified Proteins,advychemical Polyclonal Antisera,aesku,aetltd affiland,affinity,affinity biologicals,affinity bioreagent,Affinity BioReagents,Affinity BioReagents abr,Affinity Biosciences,affinitybiologicals AffinityBioReagents,AffinityImmuno,affix scientific,affixscientific,affymetrix,ag scientific,Agar Scientific,agarscientific agdia,Agela Technologies,agilent,Agilent Seahorse,agilent technologies,agilet,agilet solutions,agiletsolutions agrenvec,agrisera,AGRO-BIO,agscientific,ahdiagnostics,ahf,AHF analysentechnik,AHF analysentechnik AG Air Technology Solutions,Airgas Safety,Air-Tite,AJAX SCIENTIFIC LTD,AK Limited,Akro-Mils,ALA Scientfic,alamarblue Alba Bioscience,Alconox Inc,aldevron,alerchek,alere,Alexis,ALEXIS Biochemicals,Alfa Aesar Aline Biosciences,AlineBiosciences,All Foils Incorporated,Allcells,allele biotech,allelebiotech,allen-bradley,AllerMAbs
大鼠細(xì)胞,大鼠細(xì)胞系
細(xì)胞株,細(xì)胞系,傳代細(xì)胞
白鰱細(xì)胞 斑馬魚(yú)細(xì)胞 豹貓細(xì)胞 成人細(xì)胞 赤狐細(xì)胞 大額牛細(xì)胞 大耳山羊細(xì)胞 大黃魚(yú)細(xì)胞 大長(zhǎng)舌果蝠細(xì)胞 俄勒岡地鼠細(xì)胞 非洲綠猴細(xì)胞 高背鯽魚(yú)細(xì)胞 果蠅細(xì)胞 果子貍細(xì)胞 荷蘭黑白花奶牛細(xì)胞 黑化大家鼠細(xì)胞 花鼠細(xì)胞 家兔細(xì)胞 昆蟲(chóng)細(xì)胞 綠猴細(xì)胞 馬鐵菊頭蝠細(xì)胞 綿羊細(xì)胞 三葉小蹄蝠細(xì)胞 散鱗鏡鯉細(xì)胞 社鼠細(xì)胞 鼠細(xì)胞 樹(shù)鼩細(xì)胞 團(tuán)頭魴細(xì)胞 新生兒細(xì)胞 新生牛細(xì)胞 敘利亞倉(cāng)鼠細(xì)胞 長(zhǎng)尾綠猴細(xì)胞 中國(guó)倉(cāng)鼠細(xì)胞 中華鱉細(xì)胞 棕果蝠細(xì)胞 腫瘤細(xì)胞 豬細(xì)胞 兔細(xì)胞 犬細(xì)胞
抗體庫(kù),小包裝,流式抗體
SIGMA現(xiàn)貨,SIGMA代理

血清成分和鑒別方法

時(shí)間:2011/11/11閱讀:712
分享:

 血清成分和鑒別方法主要成分:血清是由血漿去除纖維蛋白而形成的一種很復(fù)雜的混合物,其組成成份雖大部分已知,但還有一部分尚不清楚,且血清組成及含量常隨供血?jiǎng)游锏男詣e、年齡、生理?xiàng)l件和營(yíng)養(yǎng)條件不同而異。血清中含有各種血漿蛋白、多肽、脂肪、碳水化合物、生長(zhǎng)因子、激素、無(wú)機(jī)物等,這些物質(zhì)對(duì)促進(jìn)細(xì)胞生長(zhǎng)或抑制生長(zhǎng)活性是達(dá)到生理平衡的。

對(duì)血清的成分和作用的研究雖有很大進(jìn)展,但仍存在一些問(wèn)題。主要是:
*:血清的成份可能有幾百種之多,目前對(duì)其準(zhǔn)確的成份、含量及其作用機(jī)制仍不清楚,尤其是對(duì)其中一些多肽類生長(zhǎng)因子、激素和脂類等尚未充分認(rèn)識(shí),這給研究工作帶來(lái)許多困難;
第二:血清都是批量生產(chǎn),各批量之間差異很大,而且血清保存期至多一年,因此,要保證每批血清的相似性極為困難,從而使實(shí)驗(yàn)的標(biāo)準(zhǔn)化和連續(xù)性受到限制;
第三:不能排除血清中含有易變物質(zhì),這被認(rèn)為是“瓶中惡化”的原因之一。
鑒別方法:血液凝固析出的淡黃色透明液體。如將血液自血管內(nèi)抽出,放入試管中,不加抗凝劑,則凝血反應(yīng)被激活,血液迅速凝固,形成膠凍。凝血塊收縮,其周圍所析出之淡黃色透明液體即為血清,也可于凝血后經(jīng)離心取得。在凝血過(guò)程中,纖維蛋白原轉(zhuǎn)變成纖維蛋白塊,所以血清中無(wú)纖維蛋白原,這一點(diǎn)是與血漿zui大的區(qū)別。而在凝血反應(yīng)中,血小板釋放出許多物質(zhì),各凝血因子也都發(fā)生了變化。這些成分都留在血清中并繼續(xù)發(fā)生變化,如凝血酶原變成凝血酶,并隨血清存放時(shí)間逐漸減少以至消失。這些也都是與血漿區(qū)別之處。但大量未參加凝血反應(yīng)的物質(zhì)則與血漿基本相同。為避免抗凝劑的干擾,血液中許多化學(xué)成分的分析,都以血清為樣品。
血漿是血液的液體成分,血細(xì)胞懸濁于其中。人體含有2750-3300毫升血漿,約占血液總體積的55%。血漿的絕大部分是水(體積的90%),其中溶解的物質(zhì)主要是血漿蛋白,還包括葡萄糖、無(wú)機(jī)鹽離子、激素以及二氧化碳。血漿的主要功能是運(yùn)載血細(xì)胞,同時(shí)也是運(yùn)輸分泌產(chǎn)物的主要媒介。
將新鮮血液離心,使血細(xì)胞沉降,上層淡黃色清液即是血漿。血漿與血清的區(qū)別是血清中不含纖維蛋白原等凝血因子。

會(huì)員登錄

×

請(qǐng)輸入賬號(hào)

請(qǐng)輸入密碼

=

請(qǐng)輸驗(yàn)證碼

收藏該商鋪

X
該信息已收藏!
標(biāo)簽:
保存成功

(空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)

常用:

提示

X
您的留言已提交成功!我們將在第一時(shí)間回復(fù)您~
撥打電話
在線留言