国产亚洲精久久久久久无码色戒,中国男男GayGay网站,天堂αV播放,97色综合视频

歡迎來(lái)北京祥生興業(yè)科技有限公司!我們將為您提供周到的服務(wù)!

產(chǎn)品名稱:Vitamin C in Plasma/Serum - HPLC

產(chǎn)品型號(hào):65065

產(chǎn)品報(bào)價(jià):

產(chǎn)品特點(diǎn):

英文名:VitaminCinPlasma/Serum-HPLC供應(yīng)商:祥生興業(yè)規(guī)格:100TestsVitaminCinPlasma/Serum-HPLCOrderno

免費(fèi)咨詢:13681184382

發(fā)郵件給我們:702140183@qq.com

分享到:

65065Vitamin C in Plasma/Serum - HPLC的詳細(xì)資料:

溫馨提示:僅用于科研,不可用于臨床治療

  • 英文名:

    Vitamin C in Plasma/Serum - HPLC

  • 供應(yīng)商:

    祥生興業(yè)

  • 規(guī)格:

    100 Tests

    Vitamin C in Plasma/Serum - HPLC


    Order no.: 65065
    100 Tests
    • Vitamin C

    Simplified sample preparation
    Enhanced column stability
    High stability of standards and controls

    DESCRIPTION

    Clinical relevance

    Vitamin C (ascorbic acid, ascorbate) is a water-soluble vitamin that is an essential cofactor for the human body, for instance in the catabolism of tyrosine and the synthesis of catecholamines. Regular consumption of fruit and vegetables is usually sufficient to cover the body’s vitamin C needs.

    In the case of vitamin C deficiency, procollagen chains are produced insufficiently and stable fibrils cannot be formed in the affected cells. Without functioning collagen, the blood vessels and tendons become fragile and the typical skin-related symptoms associated with scurvy start to develop. In addition to the collagen damages described above, further diseases caused by vitamin C deficiency include bleeding of uncertain origin, loss of teeth and overactive thyroid gland (hyperthyroidism). Vitamin C deficiency is also observed in dialysis patients, in chronic alcohol abuse and during pregnancy.

     

    Product advantages

    • High stability of processed samples and controls
    • Enhanced column stability
    • Reliable quantification with a stable internal standard

     

    This Chromsystems kit allows the reliable chromatographic determination of vitamin C in one isocratic HPLC run with UV detection. An efficient protein precipitation step removes interfering components and stabilises Vitamin C simultaneously. A stable internal standard is used for reliable quantification. Due to a special stabilisation of the prepared samples, it is also possible to reliably process and measure large sample batches.

     

     

    CHROMATOGRAM

    65065 HPLC kit vitamin C plasma serum - Chromatogramm EN

    TECHNICAL DATA

    Method of Analysis

    HPLC

    Number of Tests

    100

    Parameter

    Vitamin C

    Analysis Time

    5 min

    Limit of quantification

    0.4 mg/l

    Linearity

    0.4–100 mg/l

    Recovery

    97–103 %

    Intraassay

    CV ≤ 3.8 %

    Interassay

    CV ≤ 4.8 %

    Specimen

    Plasma/Serum

    Pre-analytic Treatment

    Fresh lithium heparin plasma is used for analysis. To minimise the oxidation of vitamin C the whole blood sample should be centrifuged immediately after collection and the plasma samples must then be transported deep frozen. Start sample preparation immediately after thawing. The stability for vitamin C in heparin plasma is 5 days at -20 °C. At room temperature this is only up to two hours. If whole blood is used for transportation, store at +2 to +8 °C , do not freeze.

    Sample Preparation

    • Pipette 100 μl sample/calibrator/control into a labelled light protected reaction vial.

    • Add 100 μl Internal Standard and mix 30 s (vortex).

    • Centrifuge 5 min at at least 13000 x g.

    • Inject 20 μl of the supernatant into the HPLC system.

    Sample Stability

    The patient samples are stable for 12 h at room temperatur, at +2 to +8 °C for at least 2 weeks. For longer storage (up to 6 weeks) keep samples below -18 °C.

    Additional Info

    Any isocratic HPLC system with UV detection is suitable.

     

    Injection Volume

    20 µl

    Flow rate

    1.5 ml/min

    Gradient

    Isocratic

    Column temperature

    ambient (~25 °C)

    Wavelength

    245 nm

    Please note

    The freely available information on this website, in particular on the sample preparation, are not sufficient to work with our products. Please read instructions and warning notices on products and/or instruction manuals.

    KIT COMPONENTS

    Components available separately

    Mobile Phase


    Order no.: 65001

    DETAILS

    Mobile Phase, 10 x 1000ml


    Order no.: 65002

    DETAILS

    Internal Standard


    Order no.: 65044

    DETAILS

    Reaction vials


    Order no.: 33005

    DETAILS

    Vitamin C Plasma Calibration Standard


    Order no.: 65003

    DETAILS

    ACCESSORIES

    PEEK prefilter housing


    Order no.: 15010

    DETAILS

    HPLC column


    Order no.: 65100

    DETAILS

    PEEK-encased prefilter, 5 µm


    Order no.: 15009

    DETAILS

    Precolumn cartridge 4/10


    Order no.: 18065

    DETAILS

    Precolumn cartridge holder 4/10


    Order no.: 18001

    DETAILS

    CALIBRATORS

    Calibrators available separately

    Vitamin C Plasma Calibration Standard


    Order no.: 65003

    DETAILS

    CONTROLS

    Controls available separately

    Vitamin C Plasma Controls


     

    DETAILS

溫馨提示:不可用于臨床治療。
 相關(guān)同類產(chǎn)品:

留言框

  • 產(chǎn)品:

  • 您的單位:

  • 您的姓名:

  • 聯(lián)系電話:

  • 常用郵箱:

  • 省份:

  • 詳細(xì)地址:

  • 補(bǔ)充說(shuō)明:

  • 驗(yàn)證碼:

    請(qǐng)輸入計(jì)算結(jié)果(填寫阿拉伯?dāng)?shù)字),如:三加四=7

版權(quán)所有  ICP備案號(hào):京ICP備2024091604號(hào)-1 管理登陸 技術(shù)支持:化工儀器網(wǎng)   總流量:114077  sitemap.xml

久久不免费视频1国产日韩一品道| 亚洲熟妇中文字幕成人| 成人 69| 一本久久a久免费精品不卡| 丝袜美腿三区| 91精品国产91| 66m―66m成人| 亚洲午夜无码福利| 五月卡通丁香欧美日韩| 国产精品成人一区二区三区| 国产亚洲欧美在线观看三区 | 天美传媒一区二区| 国产精品色淫av| ady狠狠操| 国产区1区2| 日韩无码人妻一区| 国产一区二区三区乱码在线观看 | 久久超碰无码精品剧情| 操精品久久| 美臀国产后入| 五月天人成网站| 国真人无码作爱免费视频| 狠狠综合亚洲综合亚洲色| 亚洲成av| AV不卡久久| 亚洲国产另类久久久| 超碰corn| 18视频免费在线观看| 人妻无码中文字幕久久| 中文字幕乱码亚洲中文在线| 国产精品入口尤物| 日韩一区二区在线免费观看| 日韩亚洲欧美一区噜噜噜| av观看网址| 夜夜操国产精品| 闽侯县| 天天综合网久久综合免费| 男人的东京热| 国产精品久在线观不| 黄色高清无码网站| 毛片基地一级大毛片|