黄色视频不卡_午夜福利免费观看在线_亚洲国产精品999在线_欧美绝顶高潮抽搐喷水_久久精品成人免费网站_晚上一个人看的免费电影_国产又色又爽无遮挡免费看_成人国产av品久久久

    1. <dd id="lgp98"></dd>
      • <dd id="lgp98"></dd>
        1. 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

          實(shí)驗(yàn)室超純水機(jī)選購(gòu)技巧

          時(shí)間:2011/10/20閱讀:668
          分享:
          客戶在選購(gòu)超純水機(jī)時(shí)一定要向廠商提供原水的水質(zhì)狀況,比如泥沙多,硬度高,地下水等情況,超純水機(jī)的工藝是根據(jù)原水水質(zhì)的好壞來(lái)確定的,泥沙多,要添加預(yù)處理裝置,硬度高,要添加軟化裝置,含鹽量高,要采用二級(jí)反滲透工藝等。如果選用以純水為水源的超純水機(jī),則只需要提供水質(zhì)需求和用水量就可以了。用水量:目前市場(chǎng)上的超純水機(jī)的造水量一般在5—100升/小時(shí),20升以上的就是非標(biāo)準(zhǔn)機(jī)型??蛻魬?yīng)根據(jù)實(shí)際用水量來(lái)選用超純水機(jī)的規(guī)格,一般遵循4倍關(guān)系原則(注:1G(加侖)等于3.785升)。如用水量是20升/天,則選用規(guī)格為5升/小時(shí)的機(jī)器,如果選用規(guī)格太小,超純水機(jī)的耗材消耗會(huì)很快,選用規(guī)格太大,則形成浪費(fèi)。用水水質(zhì):國(guó)家實(shí)驗(yàn)室標(biāo)準(zhǔn)用水有一級(jí)水、二級(jí)水、三級(jí)水三種水質(zhì),但大多數(shù)實(shí)驗(yàn)室用兩種水質(zhì)即可,一是三級(jí)水,如蒸餾水,用于玻璃器皿的清洗等;二是一級(jí)水,主要用于化學(xué)分析或者液相、原子吸收等精密儀器分析??蛻魬?yīng)根據(jù)實(shí)際水質(zhì)需求來(lái)選用超純水機(jī)的檔次。以自來(lái)水為水源的超純水機(jī)都具有兩個(gè)(兩種水質(zhì))的出水口,一是純水,即三級(jí)水;二是一級(jí)水,即超純水(嚴(yán)格意義上講一級(jí)水的電阻大于10MΩ.cm,而超純水的電阻大于18MΩ.cm)。多數(shù)客戶對(duì)自己的水質(zhì)需求并不清楚,國(guó)家相關(guān)部門雖然有各種水質(zhì)標(biāo)準(zhǔn),但是對(duì)具體的實(shí)驗(yàn)項(xiàng)目或儀器分析用水沒(méi)有完整的量化指標(biāo),往往在選購(gòu)好超純水機(jī)之后才發(fā)現(xiàn)水質(zhì)不達(dá)標(biāo)。根據(jù)經(jīng)驗(yàn),可以遵循以下3個(gè)選購(gòu)原則,相對(duì)應(yīng)即可。1.目前用水來(lái)源:如果您目前的用水是合格的,也可以將該純水的來(lái)源方式告知我們,我們技術(shù)人員會(huì)根據(jù)該情況來(lái)推薦相應(yīng)的規(guī)格型號(hào)。2.實(shí)驗(yàn)內(nèi)容:分無(wú)機(jī)實(shí)驗(yàn)和有機(jī)實(shí)驗(yàn),無(wú)機(jī)實(shí)驗(yàn)只需電阻大于18MΩ.cm的水質(zhì)就行,而有機(jī)實(shí)驗(yàn)則通常要去除水中的有機(jī)物質(zhì),所以除了電阻大于18MΩ.cm以外,還需要總有機(jī)碳的指標(biāo)。如果是生物方面的實(shí)驗(yàn),在要去除水中的細(xì)菌。3.儀器種類:客戶可以根據(jù)使用的儀器種類來(lái)選擇超純水機(jī)。液相用水的電阻大于18MΩ.cm;并且要去除有機(jī)物;原子吸收、原子熒光及環(huán)境監(jiān)測(cè)儀器用水大于18MΩ.cm就行;PCR等生命科學(xué)儀器用水除了電阻大于18MΩ.cm以外,還需除菌,除有機(jī)物等。

          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
          屯昌县| 邓州市| 陆河县| 蓬安县| 张家界市| 湾仔区| 沙湾县| 望奎县| 桃江县| 潼南县| 迁安市| 淄博市| 炎陵县| 康马县| 永福县| 七台河市| 阿拉善左旗| 墨竹工卡县| 县级市| 宜川县| 乌鲁木齐市| 宁化县| 宁蒗| 游戏| 浮梁县| 肇庆市| 石楼县| 喜德县| 阳江市| 泰州市| 新营市| 房产| 平度市| 庆城县| 湘潭市| 敖汉旗| 青铜峡市| 肥城市| 小金县| 建德市| 河北省|